SSM框架整合:SpringMVC + Spring + MyBatis+Maven
2017-10-12 21:31
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项目目的
创建一个登陆页面,输入username和password,如果和数据库对应,则跳转的success.jsp,否则跳转到error.jsp项目下载
百度网盘,点击下载源代码创建项目
创建项目
点击Finish后会如下所示(有错误的提示,不用担心)
消除错误提示
正常情况下,如上图所示, Dynamic Web Module 和 Java 是打√的, 把 Dynamic Web Module 的√去掉,然后点击右下角的Apply,然后在 在把 Dynamic Web Module 的 √ 打上,就出现下图所示:
点进去,如下图所示,把Content directory 修改成入图所示
点击OK-------------------------------------》点击Apply---------------------------------》点击Cancel,就不报错了
而且添加了我标记的一些东西,如下图所示
在pom中添加依赖
<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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.imooc</groupId> <artifactId>SSMMaven2</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <!-- 单元测试 --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!-- 日志 --> <!-- 实现slf4j接口并整合 --> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.1.1</version> </dependency> <!-- io --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.2</version> </dependency> <!-- Servlet web --> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> <scope>compile</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>compile</scope> </dependency> <!-- 数据库 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.39</version> </dependency> <!-- 数据库连接池 c3p0 --> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.3.10.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.3.10.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.10.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.10.RELEASE</version> </dependency> <!-- Spring MVC --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.10.RELEASE</version> </dependency> <!-- MyBatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.1</version> </dependency> <!-- MyBatis-Spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> </dependencies> </project>
添加完依赖后需要更新一下项目
打上下图所标记的√
错误就解除了
添加Spring,SpringMVC,MyBatis的配置文件
applicationContext-mvc.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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <!-- 配置自动扫描的包,自动加入WebIoc容器中 --> <context:component-scan base-package="com.imooc.handler"></context:component-scan> <!-- 配置视图解析器, --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 处理静态资源文件,303校验等等(标配,必须写) --> <mvc:default-servlet-handler/> <mvc:annotation-driven></mvc:annotation-driven> </beans>
applicationContext.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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"> <!-- 配置自动扫描的包,使其自动注入到IOC容器 --> <context:component-scan base-package="com.imooc.service"></context:component-scan> <!-- 导入资源文件 --> <context:property-placeholder location="classpath:db.properties" /> <!-- 配置数据源 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="user" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> <property name="driverClass" value="${jdbc.driverClass}"></property> <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property> <property name="initialPoolSize" value="${jdbc.initPoolSize}"></property> <property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property> </bean> <!-- 配置MyBatis的SqlSession --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBea dc29 n"> <property name="dataSource" ref="dataSource" /> <!-- 配置MyBatis的配置的文件 --> <property name="configLocation" value="classpath:mybatis.xml"></property> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 自动扫描 com.imooc.dao下的interface,并加入IOC容器--> <property name="basePackage" value="com.imooc.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- 开启事务 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 可通过注解控制事务 --> <tx:annotation-driven transaction-manager="transactionManager" /> </beans>
db.properties
jdbc.user=root jdbc.password=root jdbc.driverClass=com.mysql.jdbc.Driver jdbc.jdbcUrl=jdbc:mysql://localhost:3306/text jdbc.initPoolSize=5 jdbc.maxPoolSize=10 #...
mybatis.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <!-- =====>设置别名: 将com.imooc.entity.User设置为User 如果不设置别名<select id="selectDemo" resultType="com.imooc.entity.User"> ***</select> 设置别名 <select id="selectDemo" resultType="User">***</select> --> <typeAliases> <package name="com.imooc.entity"></package> </typeAliases> <mappers> <mapper resource="com/imooc/mapper/UserMapper.xml" /> </mappers> </configuration>
修改web.xml文件(就是加一个字符过滤器,SpringMVC的servlet,Spring的Listener)
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5" > <display-name>SSMMaven</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 设置字符过滤器,防止乱码 --> <filter> <filter-name>characterEncodingFilter</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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- SpringMVC --> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springDispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- Spring --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>
创建包和类
dao层
package com.imooc.dao; public interface UserMapper { //根据username查询password String selectPassword(String username); }
实体类
package com.imooc.entity; public class User { private Integer id; private String username; private String password; public User() { super(); } public User(String username, String password) { super(); this.username = username; this.password = password; } /* * (non-Javadoc) * * @see java.lang.Object#toString() */ @Override public String toString() { return "User [id=" + id + ", username=" + username + ", password=" + password + "]"; } /** * @return the id */ public Integer getId() { return id; } /** * @param id * the id to set */ public void setId(Integer id) { this.id = id; } /** * @return the username */ public String getUsername() { return username; } /** * @param username * the username to set */ public void setUsername(String username) { this.username = username; } /** * @return the password */ public String getPassword() { return password; } /** * @param password * the password to set */ public void setPassword(String password) { this.password = password; } }
控制层Controller
package com.imooc.handler; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.imooc.entity.User; import com.imooc.service.UserService; @Controller public class LoginHandler { @Autowired private UserService userService; @RequestMapping("/login.action") public String login(User user){ String password=userService.login(user.getUsername()); if(!user.getPassword().equals(password)){ return "error"; }else{ return "success"; } } /** * @return the userService */ public UserService getUserService() { return userService; } /** * @param userService the userService to set */ public void setUserService(UserService userService) { this.userService = userService; } }
dao层的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="com.imooc.dao.UserMapper"> <select id="selectPassword" resultType="String"> select password from user where username = #{username} </select> </mapper>
service层
package com.imooc.service; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.imooc.dao.UserMapper; @Service public class UserService { @Autowired private UserMapper userDao; public String login(String username){ return userDao.selectPassword(username); } public UserService() { super(); } /** * @return the userDao */ public UserMapper getUserDao() { return userDao; } /** * @param userDao the userDao to set */ public void setUserDao(UserMapper userDao) { this.userDao = userDao; } }
添加JSP页面
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!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="login.action" method="post"> username<input type="text" name="username"><br/> password<input type="password" name="password"><br/> <input type="submit" value="Submit"> </form> </body> </html>
success.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!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=ISO-8859-1"> <title>Insert title here</title> </head> <body> success.jsp </body> </html>
error.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!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=ISO-8859-1"> <title>Insert title here</title> </head> <body> error.jsp </body> </html>
大功告成
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