SpringMVC向前台传输 JSON数据

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所需Jar包jackson-core、jackson-annotations和jackson-databind

在MVC的配置文件中加入<mvc:annotation-driven></mvc:annotation-driven>

一、 pom.xml

<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.</modelVersion>
<groupId>cn.mcs</groupId>
<artifactId>springmvc02</artifactId>
<version>0.0.-SNAPSHOT</version>
<packaging>war</packaging> <properties>
<project.build.sourceEncoding>UTF-</project.build.sourceEncoding>
</properties> <dependencyManagement>
<dependencies>
<dependency>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>2.0..RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement> <build>
<finalName>activiti</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19</version>
<configuration>

<skipTests>true</skipTests>
</configuration>
</plugin>
</plugins>
</build> <dependencies>

<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>javax.servlet.jsp.jstl-api</artifactId>
</dependency>

<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.el</artifactId>
<scope>test</scope>
</dependency>

<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</dependency> 
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency> 
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency> 
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</dependency> 
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency> 
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
</dependency> 
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
</dependency> </dependencies> </project>

二、web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">

<display-name>SSM</display-name> 
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-core.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-</param-value>
</init-param>
</filter>

<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> 
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener> 
<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:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping> 
<session-config>
<session-timeout>15</session-timeout>
</session-config> 
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list> 
<error-page>
<error-code>404</error-code>
<location>/error/404.jsp</location>
</error-page>

<error-page>
<error-code>500</error-code>
<location>/error/500.jsp</location>
</error-page>
</web-app>

三、Spring与SpringMVC的配置文件

1、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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:jpa="http://www.springframework.org/schema/data/jpa" 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-4.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.8.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd"> 
<context:component-scan base-package="cn.mcs">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
<context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
</context:component-scan> </beans>

2、SpringMVC的配置文件

<?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-4.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd"> 
<context:component-scan base-package="cn.mcs" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
</context:component-scan> 
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean> 
<mvc:default-servlet-handler/> <mvc:annotation-driven></mvc:annotation-driven> </beans>

四、Controller代码

package cn.mcs.action; import java.util.ArrayList;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map; import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody; import cn.mcs.entity.Employee; @RequestMapping("/employee")
@Controller
public class EmployeeAction { @ResponseBody
@RequestMapping("/getEmployee")
public Employee getEmployee() {
Employee employee = new Employee(, "张三", "", 5600d, new Date()); return employee;
} @ResponseBody
@RequestMapping("/getEmployeeList")
public List<Employee> getEmployeeList() {
List<Employee> employees = new ArrayList<Employee>();
employees.add(new Employee(, "张三", "", 5600d, new Date()));
employees.add(new Employee(, "李四", "", 4600d, new Date()));
employees.add(new Employee(, "王二麻", "", 6600d, new Date())); return employees;
} @ResponseBody
@RequestMapping("/getEmployeeMap")
public Map<String, Object> getEmployeeMap() {
List<Employee> employees = new ArrayList<Employee>();
employees.add(new Employee(, "张三", "", 5600d, new Date()));
employees.add(new Employee(, "李四", "", 4600d, new Date()));
employees.add(new Employee(, "王二麻", "", 6600d, new Date())); Map<String, Object> map = new LinkedHashMap<String,Object>();
map.put("total", employees.size());
map.put("rows", employees); return map;
} @RequestMapping("/toEmployeeListPage")
public String toEmployeeListPage() {
return "employee/employeeList";
} }

五、Web页面代码

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> <!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> <c:set var="path" value="${pageContext.request.contextPath}" />
<link rel="stylesheet" type="text/css" href="${path}/jslib/easyui/jquery-easyui-1.4.4/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="${path}/jslib/easyui/jquery-easyui-1.4.4/themes/icon.css"> <script type="text/javascript" src="${path}/jslib/easyui/jquery-easyui-1.4.4/jquery.min.js"></script>
<script type="text/javascript" src="${path}/jslib/easyui/jquery-easyui-1.4.4/jquery.easyui.min.js"></script>
<script type="text/javascript" src="${path}/jslib/easyui/jquery-easyui-1.4.4/locale/easyui-lang-zh_CN.js"></script> </head>
<body class="easyui-layout" >
<div data-options="region:'center',fit:true,border:false" >
<a href="#" class="easyui-linkbutton" data-options="iconCls:'icon-add'">新增</a>
<a href="#" class="easyui-linkbutton" data-options="iconCls:'icon-edit'">修改</a>
<a href="#" class="easyui-linkbutton" data-options="iconCls:'icon-remove'">删除</a>
<table id="dg"></table>
</div> <script type="text/javascript">
$("#dg").datagrid({
url: "${pageContext.request.contextPath }/employee/getEmployeeMap.action",
pagination: true,
singleSelect: true,
rownumbers: true,
columns:[[
{field:'id',title:'ID',width:,align:'center'},
{field:'name',title:'职员名称',width:,align:'center'},
{field:'sex',title:'性别',width:,
formatter: function(value){
if (value == "") {
return "男";
} else {
return "女";
}
}},
{field:'salary',title:'薪水',width:,
formatter: function(value){
if (value == null) {
return "￥"+;
} else {
return "￥"+value;
}
}},
{field:'hireDate',title:'入职日期',width:,
formatter: function (value, row, index) {
var date = new Date(value);
var datetime = date.getFullYear()+"年"+(date.getMonth()+)+"月"+date.getDate()+"日";
return datetime;
}}
]],
});
</script>
</body>
</html>