SpringMVC（16）：使用springmvc+spring+jdbc 优化订单管理系统的示例（多条件查询供应商列表功能实现）
2018-02-03 18:57
1266 查看
2018/1/20
功能：多条件查询供应商列表功能，通过供应商的名称或者供应商编码过滤；
【0】文件架构和jar包
图1
图2
【1】数据库记录
【2】前台信息
在sys.sjp添加代码：
<h4>-----------------请在下面的表格填写“供应商查询条件”内容：-------------</h4>
<form action="${pageContext.request.contextPath}/usera/providerlist.html"
name="actionForm" id="actionForm" method="post">
供应商编码 ：<input type="text" name="queryProviderCode" value=""/>
供应商名称：<input type="text" name="queryProviderName" value=""/>
<br>
<input type="submit" name="查询"/>
<input type="reset" value="重置"/>
</form>
页面效果:
【3】代码分层：
处理器方法providerController.java添加代码：
package com.Provider.Controller;
import java.sql.SQLException;
import java.util.List;
import javax.validation.Valid;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.Provider.Service.ProviderService;
import com.Provider.entities.Provider;
import com.User.Controller.UserController;
@Controller
@RequestMapping("/usera")
public class ProviderController {
private Logger log = Logger.getLogger(UserController.class.getName());
@Autowired
private ProviderService providerService;
@RequestMapping("/providerlist.html")
public String getProviderList(Model model,
@RequestParam(name="queryProviderCode",required=false)String queryProviderCode,
@RequestParam(name="queryProviderName",required=false)String queryProviderName) throws SQLException{
log.info("getUserList ====> queryUserName: "+queryProviderCode);
log.info("getUserList ====> queryUserRole: "+queryProviderName);
List<Provider> providerlist = null;
if(queryProviderCode == null){
queryProviderCode = "";
}
if(queryProviderName == null){
queryProviderName = "";
}
providerlist = providerService.getProviderList(queryProviderCode,queryProviderName);
model.addAttribute("prolist",providerlist);
return "providerlist";
}
}
解释：1.暂未加入分页处理，后续跟进；
Service层：ProviderService.java接口与实现类ProviderServiceImpl.java添加代码：
package com.Provider.Service;
import java.sql.SQLException;
import java.util.List;
import com.Provider.entities.Provider;
public interface ProviderService {
public List<Provider> getProviderList(String queryProviderCode,String queryProviderName) throws SQLException;
public boolean save(Provider provider) throws SQLException;
}
Dao层：ProviderDao.java接口与实现类ProviderDaoImpl.java添加代码：
package com.Provider.Dao;
import java.sql.SQLException;
import java.util.List;
import com.Provider.entities.Provider;
public interface ProviderDao {
List<Provider> getProviderList(String queryProviderCode, String queryProviderName) throws SQLException;
public int save(Provider provider) throws SQLException;
}
【4】配置文件
spring配置文件
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="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-4.2.xsd ">
<context:component-scan base-package="com.User.Dao"></context:component-scan>
<context:component-scan base-package="com.User.Service"></context:component-scan>
<context:component-scan base-package="com.Role.Dao"></context:component-scan>
<context:component-scan base-package="com.Role.Service"></context:component-scan>
<context:component-scan base-package="com.Provider.Dao"></context:component-scan>
<context:component-scan base-package="com.Provider.Service"></context:component-scan>
</beans>
springmvc配置文件
<?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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!--mvc静态资源访问 -->
<mvc:resources mapping="/statics/**" location="/statics/"/>
<!-- 一键式配置 -->
<context:component-scan base-package="com.User.Controller"></context:component-scan>
<context:component-scan base-package="com.Provider.Controller"></context:component-scan>
<context:component-scan base-package="com.User"></context:component-scan>
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 配置视图解析器: 如何把 handler 方法返回值解析为实际的物理视图 -->
<!--prefix 前缀+suffix 后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 全局异常处理 -->
<!-- -->
<bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<prop key="java.lang.RuntimeException">login</prop>
</props>
</property>
</bean>
</beans>
web.xml配置文件
<?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">
<!-- 这个指定了log4j.xml放置的目录 -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<!-- 一定要加上这个listener -->
<listener>
<listener-class>
org.springframework.web.util.Log4jConfigListener
</listener-class>
</listener>
<!-- 配置 DispatcherServlet -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
<!--容器启动时就被加载了 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>springUtf8Encoding</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>springUtf8Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/login.jsp</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-*.xml</param-value>
</context-param>
<!-- 配置Spring的ContextLoaderListener监听器，初始化spring容器 -->
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>
【5】结果显示页面：
新建providerlist.jsp，添加：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!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>
<h4>这是providerlist，负责展示供应商信息！</h4>
<c:forEach items="${prolist}" var="arr">
<c:out value="${arr.proCode}"></c:out>
<c:out value="${arr.proName}"></c:out>
<c:out value="${arr.proFax}"></c:out>
<c:out value="${arr.proPhone}"></c:out>
<c:out value="${arr.proContact}"></c:out>
<c:out value="${arr.creationDate}"></c:out>
<br>
</c:forEach>
</body>
</html>
【6】结果显示：
1、有条件：
2、无条件：
功能：多条件查询供应商列表功能，通过供应商的名称或者供应商编码过滤；
【0】文件架构和jar包
图1
图2
【1】数据库记录
【2】前台信息
在sys.sjp添加代码：
<h4>-----------------请在下面的表格填写“供应商查询条件”内容：-------------</h4>
<form action="${pageContext.request.contextPath}/usera/providerlist.html"
name="actionForm" id="actionForm" method="post">
供应商编码 ：<input type="text" name="queryProviderCode" value=""/>
供应商名称：<input type="text" name="queryProviderName" value=""/>
<br>
<input type="submit" name="查询"/>
<input type="reset" value="重置"/>
</form>
页面效果:
【3】代码分层：
处理器方法providerController.java添加代码：
package com.Provider.Controller;
import java.sql.SQLException;
import java.util.List;
import javax.validation.Valid;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.Provider.Service.ProviderService;
import com.Provider.entities.Provider;
import com.User.Controller.UserController;
@Controller
@RequestMapping("/usera")
public class ProviderController {
private Logger log = Logger.getLogger(UserController.class.getName());
@Autowired
private ProviderService providerService;
@RequestMapping("/providerlist.html")
public String getProviderList(Model model,
@RequestParam(name="queryProviderCode",required=false)String queryProviderCode,
@RequestParam(name="queryProviderName",required=false)String queryProviderName) throws SQLException{
log.info("getUserList ====> queryUserName: "+queryProviderCode);
log.info("getUserList ====> queryUserRole: "+queryProviderName);
List<Provider> providerlist = null;
if(queryProviderCode == null){
queryProviderCode = "";
}
if(queryProviderName == null){
queryProviderName = "";
}
providerlist = providerService.getProviderList(queryProviderCode,queryProviderName);
model.addAttribute("prolist",providerlist);
return "providerlist";
}
}
解释：1.暂未加入分页处理，后续跟进；
Service层：ProviderService.java接口与实现类ProviderServiceImpl.java添加代码：
package com.Provider.Service;
import java.sql.SQLException;
import java.util.List;
import com.Provider.entities.Provider;
public interface ProviderService {
public List<Provider> getProviderList(String queryProviderCode,String queryProviderName) throws SQLException;
public boolean save(Provider provider) throws SQLException;
}
package com.Provider.Service;
import java.sql.SQLException;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.Provider.Dao.ProviderDao;
import com.Provider.entities.Provider;
@Service("providerService")
public class ProviderServiceImpl implements ProviderService {
@Autowired
ProviderDao providerDao;
@Override
public List<Provider> getProviderList(String queryProviderCode, String queryProviderName) throws SQLException {
return providerDao.getProviderList(queryProviderCode,queryProviderName);
}
}Dao层：ProviderDao.java接口与实现类ProviderDaoImpl.java添加代码：
package com.Provider.Dao;
import java.sql.SQLException;
import java.util.List;
import com.Provider.entities.Provider;
public interface ProviderDao {
List<Provider> getProviderList(String queryProviderCode, String queryProviderName) throws SQLException;
public int save(Provider provider) throws SQLException;
}
package com.Provider.Dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
import com.Provider.entities.Provider;
import com.User.Controller.UserController;
@Component("providerDao")
public class ProviderDaoImpl implements ProviderDao {
private Connection conn = null;
private Statement stmt
4000
= null;
private ResultSet rs = null;
private String sql;
@Override
public List<Provider> getProviderList(String queryProviderCode, String queryProviderName) throws SQLException {
List<Provider> providerlist = new ArrayList<Provider>();
sql = "select proCode,proName,proContact ,proPhone,proFax ,creatiomDate "
+ " from smbms_provider "
+ " where proCode like CONCAT('%','"+queryProviderCode+"','%')"
+ " and proName like CONCAT('%','"+queryProviderName+"','%');" ;
System.out.println("providerdao执行的sql: "+sql);
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/test";
String username = "root";
String password = "";
try {
Class.forName(driver);
conn = DriverManager.getConnection(url,username,password);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
while(rs.next()){
Provider pro= new Provider();
pro.setProCode(rs.getString("proCode"));
pro.setProName(rs.getString("proName"));
pro.setProContact(rs.getString("proContact"));
pro.setProPhone(rs.getString("proPhone"));
pro.setProFax(rs.getString("proFax"));
pro.setCreationDate(rs.getDate("creatiomDate"));
providerlist.add(pro);
}
if(stmt!=null){
stmt.close();
}
if(rs!=null){
rs.close();
}
return providerlist;
}
}【4】配置文件
spring配置文件
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="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-4.2.xsd ">
<context:component-scan base-package="com.User.Dao"></context:component-scan>
<context:component-scan base-package="com.User.Service"></context:component-scan>
<context:component-scan base-package="com.Role.Dao"></context:component-scan>
<context:component-scan base-package="com.Role.Service"></context:component-scan>
<context:component-scan base-package="com.Provider.Dao"></context:component-scan>
<context:component-scan base-package="com.Provider.Service"></context:component-scan>
</beans>
springmvc配置文件
<?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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!--mvc静态资源访问 -->
<mvc:resources mapping="/statics/**" location="/statics/"/>
<!-- 一键式配置 -->
<context:component-scan base-package="com.User.Controller"></context:component-scan>
<context:component-scan base-package="com.Provider.Controller"></context:component-scan>
<context:component-scan base-package="com.User"></context:component-scan>
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 配置视图解析器: 如何把 handler 方法返回值解析为实际的物理视图 -->
<!--prefix 前缀+suffix 后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 全局异常处理 -->
<!-- -->
<bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<prop key="java.lang.RuntimeException">login</prop>
</props>
</property>
</bean>
</beans>
web.xml配置文件
<?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">
<!-- 这个指定了log4j.xml放置的目录 -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<!-- 一定要加上这个listener -->
<listener>
<listener-class>
org.springframework.web.util.Log4jConfigListener
</listener-class>
</listener>
<!-- 配置 DispatcherServlet -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
<!--容器启动时就被加载了 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>springUtf8Encoding</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>springUtf8Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/login.jsp</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-*.xml</param-value>
</context-param>
<!-- 配置Spring的ContextLoaderListener监听器，初始化spring容器 -->
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>
【5】结果显示页面：
新建providerlist.jsp，添加：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!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>
<h4>这是providerlist，负责展示供应商信息！</h4>
<c:forEach items="${prolist}" var="arr">
<c:out value="${arr.proCode}"></c:out>
<c:out value="${arr.proName}"></c:out>
<c:out value="${arr.proFax}"></c:out>
<c:out value="${arr.proPhone}"></c:out>
<c:out value="${arr.proContact}"></c:out>
<c:out value="${arr.creationDate}"></c:out>
<br>
</c:forEach>
</body>
</html>
【6】结果显示：
1、有条件：
2、无条件：
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 
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