SpringMVC+Spring+MyBatis的demo
2015-11-11 17:18
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最近学习SpringMVC与Mybatis，在此做一个demo来加强学习。
主要用了Spring MVC与Mybatis，具体如下：
Java&IDE: JDK8 Eclipse
Backend: SpringMVC3.2.9 Spring3.2.9 MyBatis3.1.1 (Configured by annotation)
Database: Mysql
Web Server: Tomcat 8
Build Tool: Maven
Other: Druid(database connection pool) JUnit Log4j Jackson FastJson
使用的是maven来构建项目
主要功能接口如下：
public
interface MUserService {
List<MUser> getAll();
MUser selectByPrimaryKey(String id);
int insert(MUser muser);
int update(MUser muser);
int delect(String id);
}
可以看出是CRUD。使用Spring来进行三层注入(Repository) -> Service -> Controller
目录如下：
从配置文件开始有5个配置文件+web.xml+pom.xml,共7个。
config.properties.xml主要配置数据库
log4j.properties用于配置日志
Spring-mvc.xml
Spring-mybatis.xml
Spring.xml配置
pom.xml配置
web.xml配置
(1)Repository，通常Spring使用Repository进行数据层的注入：
MUserMapper.java
package rml.dao;
import java.util.List;
import rml.model.MUser;
public interface MUserMapper {
int deleteByPrimaryKey(String id);
int insert(MUser record);
int insertSelective(MUser record);
MUser selectByPrimaryKey(String id);
int updateByPrimaryKeySelective(MUser record);
int updateByPrimaryKey(MUser record);
List<MUser> getAll();
}MUserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="rml.dao.MUserMapper" >
<resultMap id="BaseResultMap" type="rml.model.MUser" >
<id column="ID" property="id" jdbcType="VARCHAR" />
<result column="NAME" property="name" jdbcType="VARCHAR" />
<result column="AGE" property="age" jdbcType="DECIMAL" />
<result column="ADDRESS" property="address" jdbcType="VARCHAR" />
</resultMap>
<sql id="Base_Column_List">
ID,NAME,AGE,ADDRESS
</sql>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String">
select
<include refid="Base_Column_List"/>
from MUSER
where ID=#{id,jdbcType=VARCHAR}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.String">
delete from MUSER
where ID = #{id,jdbcType=VARCHAR}
</delete>
<insert id="insert" parameterType="rml.model.MUser" >
insert into MUSER (ID, NAME, AGE,
ADDRESS)
values (#{id,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}, #{age,jdbcType=DECIMAL},
#{address,jdbcType=VARCHAR})
</insert>
<insert id="insertSelective" parameterType="rml.model.MUser" >
insert into MUSER
<trim prefix="(" suffix=")" suffixOverrides="," >
<if test="id != null" >
ID,
</if>
<if test="name != null" >
NAME,
</if>
<if test="age != null" >
AGE,
</if>
<if test="address != null" >
ADDRESS,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides="," >
<if test="id != null" >
#{id,jdbcType=VARCHAR},
</if>
<if test="name != null" >
#{name,jdbcType=VARCHAR},
</if>
<if test="age != null" >
1108f
#{age,jdbcType=DECIMAL},
</if>
<if test="address != null" >
#{address,jdbcType=VARCHAR},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="rml.model.MUser" >
update MUSER
<set >
<if test="name != null" >
NAME = #{name,jdbcType=VARCHAR},
</if>
<if test="age != null" >
AGE = #{age,jdbcType=DECIMAL},
</if>
<if test="address != null" >
ADDRESS = #{address,jdbcType=VARCHAR},
</if>
</set>
where ID = #{id,jdbcType=VARCHAR}
</update>
<update id="updateByPrimaryKey" parameterType="rml.model.MUser" >
update MUSER
set NAME = #{name,jdbcType=VARCHAR},
AGE = #{age,jdbcType=DECIMAL},
ADDRESS = #{address,jdbcType=VARCHAR}
where ID = #{id,jdbcType=VARCHAR}
</update>
<select id="getAll" resultMap="BaseResultMap">
select ID, NAME, AGE, ADDRESS from muser
</select>
</mapper>
（2）Service,Spring通常使用Service进行业务层的注入。
MUserService.java
package rml.service;
import java.util.List;
import rml.model.MUser;
public interface MUserService {
List<MUser> getAll();
MUser selectByPrimaryKey(String id);
int insert(MUser muser);
int update(MUser muser);
int delect(String id);
}
MUserServiceImpl.java
package rml.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import rml.dao.MUserMapper;
import rml.model.MUser;
@Service("muserService")
public class MUserServiceImpl implements MUserService {
private MUserMapper muserMapper;
public MUserMapper getMuserMapper() {
return muserMapper;
}
@Autowired
public void setMuserMapper(MUserMapper muserMapper) {
this.muserMapper = muserMapper;
}
@Override
public List<MUser> getAll() {
return muserMapper.getAll();
}
@Override
public MUser selectByPrimaryKey(String id) {
return muserMapper.selectByPrimaryKey(id);
}
@Override
public int insert(MUser muser) {
return muserMapper.insert(muser);
}
@Override
public int update(MUser muser) {
return muserMapper.updateByPrimaryKey(muser);
}
@Override
public int delect(String id) {
return muserMapper.deleteByPrimaryKey(id);
}
}
（3）Controller,SpringMVC控制层的注入。
package rml.controller;
import java.util.List;
import java.util.UUID;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import rml.model.MUser;
import rml.service.MUserService;
@Controller
@RequestMapping("/muserController")
public class MUserController {
private MUserService muService;
public MUserService getMuService() {
return muService;
}
@Autowired
public void setMuService(MUserService muService) {
this.muService = muService;
}
@RequestMapping(value="/listUser")
public String listUser(HttpServletRequest request){
List<MUser> list = muService.getAll();
request.setAttribute("userlist", list);
return "listUser";
}
@RequestMapping(value="/addUser")
public String addUser(MUser mUser){
String id = UUID.randomUUID().toString();
System.out.println(id);
mUser.setId(id);
muService.insert(mUser);
return "redirect:/muserController/listUser.do";
}
@RequestMapping(value="/deleteUser")
public String deleteUser(String id){
muService.delect(id);
return "redirect:/muserController/listUser.do";
}
@RequestMapping(value="/updateUserUI")
public String updateUserUI(String id,HttpServletRequest request){
MUser mUser = muService.selectByPrimaryKey(id);
request.setAttribute("user", mUser);
return "updateUser";
}
@RequestMapping(value="/updateUser")
public String updateUser(MUser mUser){
muService.update(mUser);
return "redirect:/muserController/listUser.do";
}
}
最后加上一个user model
MUser.java
package rml.model;
public class MUser {
private String id;
private String name;
private Integer age;
private String address;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id == null?null :id.trim();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name == null?null :name.trim(); //去除多余空格键
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address == null ?null :address.trim();
}
@Override
public String toString() {
return "MUser [id=" + id + ", name=" + name + ", age=" + age
+ ", address=" + address + "]";
}
}
(4)加入单元测试代码
TestMybatis.javaimport org.apache.log4j.Logger;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.alibaba.fastjson.JSON;
import rml.model.MUser;
import rml.service.MUserService;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={ "classpath:spring.xml", "classpath:spring-mybatis.xml"})
public class TestMybatis {
private static final Logger logger = Logger.getLogger(TestMybatis.class);
private MUserService mUserService;
public MUserService getmUserService() {
return mUserService;
}
@Autowired
public void setmUserService(MUserService mUserService) {
this.mUserService = mUserService;
}
/**
* test insert
*/
@Test
public void test1(){
MUser mUser = new MUser();
mUser.setId("000");
mUser.setAge(18);
mUser.setName("abc");
mUser.setAddress("qqqqq");
int i = mUserService.insert(mUser);
logger.info(JSON.toJSONStringWithDateFormat("update " +i, "yyyy-MM-dd HH:mm:ss"));
}
@Test
public void test4() {
MUser muser = new MUser();
muser.setId("0000");
muser.setName("bbbb");
muser.setAge(1234);
muser.setAddress("ABCD");
int i = mUserService.delect("000");
logger.info(JSON.toJSONStringWithDateFormat("delete "+i, "yyyy-MM-dd HH:mm:ss"));
}
}
The end 4个jsp页面
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath%>">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
Spring core + Spring MVC + Mybatis <br>
<a href="<%=path %>/muserController/listUser.do">User List</a>
</body>
</html>
addUser,jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="<%=path %>/muserController/addUser.do" method="POST">
<table>
<tr>
<td>name:</td>
<td><input type="text" name="name"></td>
</tr>
<tr>
<td>age:</td>
<td><input type="text" name="age"></td>
</tr>
<tr>
<td>address:</td>
<td><input type="text" name="address"></td>
</tr>
<tr>
<td>
<input type="submit" value="Save">
</td>
<td>
<input type="reset" value="Reset">
</td>
</tr>
</table>
</form>
</body>
</html>
listUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h3>UserList</h3>
<a href="<%=path %>/addUser.jsp">Add User</a><br/>
<table border="1" width="70%">
<tr>
<td>Id</td>
<td>Name</td>
<td>Age</td>
<td>Address</td>
<td>Delete</td>
<td>Update</td>
</tr>
<c:forEach items="${userlist}" var="user">
<tr>
<td>${user.id }</td>
<td>${user.name }</td>
<td>${user.age }</td>
<td>${user.address }</td>
<td><a href="<%=path %>/muserController/deleteUser.do?id=${user.id }">Delete</a></td>
<td><a href="<%=path %>/muserController/updateUserUI.do?id=${user.id }">Update</a></td>
</tr>
</c:forEach>
</table>
</body>
</html>
updateUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="<%=path %>/muserController/updateUser.do" method="POST">
<input type="hidden" name="id" value="${user.id }">
<table>
<tr>
<td>
name:
</td>
<td>
<input type="text" name="name" value="${user.name }">
</td>
</tr>
<tr>
<td>
age:
</td>
<td>
<input type="text" name="age" value="${user.age }">
</td>
</tr>
<tr>
<td>
address:
</td>
<td>
<input type="text" name="address" value="${user.address }">
</td>
</tr>
<tr>
<td>
<input type="submit" value="Update">
</td>
<td>
<input type="reset" value="Reset">
</td>
</tr>
</table>
</form>
</body>
</html>
结束！！
主要用了Spring MVC与Mybatis，具体如下：
Java&IDE: JDK8 Eclipse
Backend: SpringMVC3.2.9 Spring3.2.9 MyBatis3.1.1 (Configured by annotation)
Database: Mysql
Web Server: Tomcat 8
Build Tool: Maven
Other: Druid(database connection pool) JUnit Log4j Jackson FastJson
使用的是maven来构建项目
主要功能接口如下：
public
interface MUserService {
List<MUser> getAll();
MUser selectByPrimaryKey(String id);
int insert(MUser muser);
int update(MUser muser);
int delect(String id);
}
可以看出是CRUD。使用Spring来进行三层注入(Repository) -> Service -> Controller
目录如下：
从配置文件开始有5个配置文件+web.xml+pom.xml,共7个。
config.properties.xml主要配置数据库
hibernate.dialect=org.hibernate.dialect.MySQLDialect //RDBMS方言，少了将出错。各个数据库不同 driverClassName=com.mysql.jdbc.Driver validationQuery=SELECT 1 //该选项用来验证数据库连接的有效性,各个数据库不同 jdbc_url=jdbc:mysql://localhost:3306/mybatis1 jdbc_username=root jdbc_password=19930121
log4j.properties用于配置日志
log4j.rootLogger=DEBUG, A1 ,R
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%-d{yyyy-MM-dd HH\:mm\:ss} [%c]-[%p] %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=D:\\hadoop\\Spring_Log4j.log
log4j.appender.R.MaxFileSize=100KB log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%nSpring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <!-- 配置自动扫描包 --> <context:component-scan base-package="rml.controller" /> <!-- 用来处理json格式转换 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /> </list> </property> </bean> <!-- 配置jsp前缀与后缀 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" /> <!--配置文件上传 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding"> <value>UTF-8</value> </property> <property name="maxUploadSize"> <value>10485760</value><!-- 10M --> </property> <property name="maxInMemorySize"> <value>4096</value> </property> </bean> </beans>
Spring-mybatis.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd "> <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-m 4000 ethod="close"> <property name="url" value="${jdbc_url}" /> <property name="username" value="${jdbc_username}" /> <property name="password" value="${jdbc_password}" /> <property name="initialSize" value="0" /> <property name="maxActive" value="20" /> <property name="maxIdle" value="20" /> <property name="minIdle" value="0" /> <property name="maxWait" value="60000" /> <property name="validationQuery" value="${validationQuery}" /> <property name="testOnBorrow" value="false" /> <property name="testOnReturn" value="false" /> <property name="testWhileIdle" value="true" /> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <property name="minEvictableIdleTimeMillis" value="25200000" /> <property name="removeAbandoned" value="true" /> <property name="removeAbandonedTimeout" value="1800" /> <property name="logAbandoned" value="true" /> <property name="filters" value="mergeStat" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mapperLocations" value="classpath:rml/mapping/*.xml" /> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="rml.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <tx:advice id="transactionAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="append*" propagation="REQUIRED" /> <tx:method name="insert*" propagation="REQUIRED" /> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="modify*" propagation="REQUIRED" /> <tx:method name="edit*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="remove*" propagation="REQUIRED" /> <tx:method name="repair" propagation="REQUIRED" /> <tx:method name="delAndRepair" propagation="REQUIRED" /> <tx:method name="get*" propagation="SUPPORTS" /> <tx:method name="find*" propagation="SUPPORTS" /> <tx:method name="load*" propagation="SUPPORTS" /> <tx:method name="search*" propagation="SUPPORTS" /> <tx:method name="datagrid*" propagation="SUPPORTS" /> <tx:method name="*" propagation="SUPPORTS" /> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="transactionPointcut" expression="execution(* rml.service..*Impl.*(..))" /> <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" /> </aop:config> </beans>
Spring.xml配置
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd "> <context:property-placeholder location="classpath:config.properties" /> <context:component-scan base-package="rml.service" /> </beans>
pom.xml配置
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.hunter</groupId> <artifactId>SpringMVC</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>SpringMVC Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>3.2.9.RELEASE</spring.version> <mybatis.version>3.1.1</mybatis.version> <mybatisspring.version>1.1.1</mybatisspring.version> <mysql.jdbc.version>5.1.21</mysql.jdbc.version> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>${mybatisspring.version}</version> </dependency> <!-- mysql的依赖 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.jdbc.version}</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>0.2.26</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.1</version> </dependency> <!-- tomcat8加上这个有问题 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>3.0-alpha-1</version> </dependency> --> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2.1-b03</version> <scope>provided</scope> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.41</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> </dependencies> <build> <finalName>SpringMVC</finalName> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>2.2</version> <configuration> <version>3.0</version> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> </plugins> </build> </project>
web.xml配置
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>SpringMVC</display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value> </context-param> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <listener> <description>spring listener</description> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <description>spring mvc servlet</description> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <description>springmvc config</description> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
(1)Repository，通常Spring使用Repository进行数据层的注入：
MUserMapper.java
package rml.dao;
import java.util.List;
import rml.model.MUser;
public interface MUserMapper {
int deleteByPrimaryKey(String id);
int insert(MUser record);
int insertSelective(MUser record);
MUser selectByPrimaryKey(String id);
int updateByPrimaryKeySelective(MUser record);
int updateByPrimaryKey(MUser record);
List<MUser> getAll();
}MUserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="rml.dao.MUserMapper" >
<resultMap id="BaseResultMap" type="rml.model.MUser" >
<id column="ID" property="id" jdbcType="VARCHAR" />
<result column="NAME" property="name" jdbcType="VARCHAR" />
<result column="AGE" property="age" jdbcType="DECIMAL" />
<result column="ADDRESS" property="address" jdbcType="VARCHAR" />
</resultMap>
<sql id="Base_Column_List">
ID,NAME,AGE,ADDRESS
</sql>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String">
select
<include refid="Base_Column_List"/>
from MUSER
where ID=#{id,jdbcType=VARCHAR}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.String">
delete from MUSER
where ID = #{id,jdbcType=VARCHAR}
</delete>
<insert id="insert" parameterType="rml.model.MUser" >
insert into MUSER (ID, NAME, AGE,
ADDRESS)
values (#{id,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}, #{age,jdbcType=DECIMAL},
#{address,jdbcType=VARCHAR})
</insert>
<insert id="insertSelective" parameterType="rml.model.MUser" >
insert into MUSER
<trim prefix="(" suffix=")" suffixOverrides="," >
<if test="id != null" >
ID,
</if>
<if test="name != null" >
NAME,
</if>
<if test="age != null" >
AGE,
</if>
<if test="address != null" >
ADDRESS,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides="," >
<if test="id != null" >
#{id,jdbcType=VARCHAR},
</if>
<if test="name != null" >
#{name,jdbcType=VARCHAR},
</if>
<if test="age != null" >
1108f
#{age,jdbcType=DECIMAL},
</if>
<if test="address != null" >
#{address,jdbcType=VARCHAR},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="rml.model.MUser" >
update MUSER
<set >
<if test="name != null" >
NAME = #{name,jdbcType=VARCHAR},
</if>
<if test="age != null" >
AGE = #{age,jdbcType=DECIMAL},
</if>
<if test="address != null" >
ADDRESS = #{address,jdbcType=VARCHAR},
</if>
</set>
where ID = #{id,jdbcType=VARCHAR}
</update>
<update id="updateByPrimaryKey" parameterType="rml.model.MUser" >
update MUSER
set NAME = #{name,jdbcType=VARCHAR},
AGE = #{age,jdbcType=DECIMAL},
ADDRESS = #{address,jdbcType=VARCHAR}
where ID = #{id,jdbcType=VARCHAR}
</update>
<select id="getAll" resultMap="BaseResultMap">
select ID, NAME, AGE, ADDRESS from muser
</select>
</mapper>
（2）Service,Spring通常使用Service进行业务层的注入。
MUserService.java
package rml.service;
import java.util.List;
import rml.model.MUser;
public interface MUserService {
List<MUser> getAll();
MUser selectByPrimaryKey(String id);
int insert(MUser muser);
int update(MUser muser);
int delect(String id);
}
MUserServiceImpl.java
package rml.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import rml.dao.MUserMapper;
import rml.model.MUser;
@Service("muserService")
public class MUserServiceImpl implements MUserService {
private MUserMapper muserMapper;
public MUserMapper getMuserMapper() {
return muserMapper;
}
@Autowired
public void setMuserMapper(MUserMapper muserMapper) {
this.muserMapper = muserMapper;
}
@Override
public List<MUser> getAll() {
return muserMapper.getAll();
}
@Override
public MUser selectByPrimaryKey(String id) {
return muserMapper.selectByPrimaryKey(id);
}
@Override
public int insert(MUser muser) {
return muserMapper.insert(muser);
}
@Override
public int update(MUser muser) {
return muserMapper.updateByPrimaryKey(muser);
}
@Override
public int delect(String id) {
return muserMapper.deleteByPrimaryKey(id);
}
}
（3）Controller,SpringMVC控制层的注入。
package rml.controller;
import java.util.List;
import java.util.UUID;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import rml.model.MUser;
import rml.service.MUserService;
@Controller
@RequestMapping("/muserController")
public class MUserController {
private MUserService muService;
public MUserService getMuService() {
return muService;
}
@Autowired
public void setMuService(MUserService muService) {
this.muService = muService;
}
@RequestMapping(value="/listUser")
public String listUser(HttpServletRequest request){
List<MUser> list = muService.getAll();
request.setAttribute("userlist", list);
return "listUser";
}
@RequestMapping(value="/addUser")
public String addUser(MUser mUser){
String id = UUID.randomUUID().toString();
System.out.println(id);
mUser.setId(id);
muService.insert(mUser);
return "redirect:/muserController/listUser.do";
}
@RequestMapping(value="/deleteUser")
public String deleteUser(String id){
muService.delect(id);
return "redirect:/muserController/listUser.do";
}
@RequestMapping(value="/updateUserUI")
public String updateUserUI(String id,HttpServletRequest request){
MUser mUser = muService.selectByPrimaryKey(id);
request.setAttribute("user", mUser);
return "updateUser";
}
@RequestMapping(value="/updateUser")
public String updateUser(MUser mUser){
muService.update(mUser);
return "redirect:/muserController/listUser.do";
}
}
最后加上一个user model
MUser.java
package rml.model;
public class MUser {
private String id;
private String name;
private Integer age;
private String address;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id == null?null :id.trim();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name == null?null :name.trim(); //去除多余空格键
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address == null ?null :address.trim();
}
@Override
public String toString() {
return "MUser [id=" + id + ", name=" + name + ", age=" + age
+ ", address=" + address + "]";
}
}
(4)加入单元测试代码
TestMybatis.javaimport org.apache.log4j.Logger;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.alibaba.fastjson.JSON;
import rml.model.MUser;
import rml.service.MUserService;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={ "classpath:spring.xml", "classpath:spring-mybatis.xml"})
public class TestMybatis {
private static final Logger logger = Logger.getLogger(TestMybatis.class);
private MUserService mUserService;
public MUserService getmUserService() {
return mUserService;
}
@Autowired
public void setmUserService(MUserService mUserService) {
this.mUserService = mUserService;
}
/**
* test insert
*/
@Test
public void test1(){
MUser mUser = new MUser();
mUser.setId("000");
mUser.setAge(18);
mUser.setName("abc");
mUser.setAddress("qqqqq");
int i = mUserService.insert(mUser);
logger.info(JSON.toJSONStringWithDateFormat("update " +i, "yyyy-MM-dd HH:mm:ss"));
}
@Test
public void test4() {
MUser muser = new MUser();
muser.setId("0000");
muser.setName("bbbb");
muser.setAge(1234);
muser.setAddress("ABCD");
int i = mUserService.delect("000");
logger.info(JSON.toJSONStringWithDateFormat("delete "+i, "yyyy-MM-dd HH:mm:ss"));
}
}
The end 4个jsp页面
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath%>">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
Spring core + Spring MVC + Mybatis <br>
<a href="<%=path %>/muserController/listUser.do">User List</a>
</body>
</html>
addUser,jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="<%=path %>/muserController/addUser.do" method="POST">
<table>
<tr>
<td>name:</td>
<td><input type="text" name="name"></td>
</tr>
<tr>
<td>age:</td>
<td><input type="text" name="age"></td>
</tr>
<tr>
<td>address:</td>
<td><input type="text" name="address"></td>
</tr>
<tr>
<td>
<input type="submit" value="Save">
</td>
<td>
<input type="reset" value="Reset">
</td>
</tr>
</table>
</form>
</body>
</html>
listUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h3>UserList</h3>
<a href="<%=path %>/addUser.jsp">Add User</a><br/>
<table border="1" width="70%">
<tr>
<td>Id</td>
<td>Name</td>
<td>Age</td>
<td>Address</td>
<td>Delete</td>
<td>Update</td>
</tr>
<c:forEach items="${userlist}" var="user">
<tr>
<td>${user.id }</td>
<td>${user.name }</td>
<td>${user.age }</td>
<td>${user.address }</td>
<td><a href="<%=path %>/muserController/deleteUser.do?id=${user.id }">Delete</a></td>
<td><a href="<%=path %>/muserController/updateUserUI.do?id=${user.id }">Update</a></td>
</tr>
</c:forEach>
</table>
</body>
</html>
updateUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="<%=path %>/muserController/updateUser.do" method="POST">
<input type="hidden" name="id" value="${user.id }">
<table>
<tr>
<td>
name:
</td>
<td>
<input type="text" name="name" value="${user.name }">
</td>
</tr>
<tr>
<td>
age:
</td>
<td>
<input type="text" name="age" value="${user.age }">
</td>
</tr>
<tr>
<td>
address:
</td>
<td>
<input type="text" name="address" value="${user.address }">
</td>
</tr>
<tr>
<td>
<input type="submit" value="Update">
</td>
<td>
<input type="reset" value="Reset">
</td>
</tr>
</table>
</form>
</body>
</html>
结束！！
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