V2AS问路
SpringMVC向前台传输 JSON数据
阅读原文时间：2023年07月09日阅读：3

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

在MVC的配置文件中加入

一、 pom.xml

http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.
cn.mcs
springmvc02
0.0.-SNAPSHOT
war

 <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>  
                 <!-- Maven 跳过运行 Test 代码的配置 -->  
                 <skipTests>true</skipTests>  
             </configuration>  
         </plugin>  
     </plugins>  
 </build>

 <dependencies>  
     <!-- Junit 4.12 -->  
     <dependency>  
         <groupId>junit</groupId>  
         <artifactId>junit</artifactId>  
         <scope>test</scope>  
     </dependency>  
     <!-- javax.servlet -->  
     <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>  
     <!-- EL -->  
     <dependency>  
         <groupId>javax.el</groupId>  
         <artifactId>javax.el-api</artifactId>  
     </dependency>  
     <dependency>  
         <groupId>org.glassfish</groupId>  
         <artifactId>javax.el</artifactId>  
         <scope>test</scope>  
     </dependency>  
     <!-- Log4j 1.2. -->  
     <dependency>  
         <groupId>log4j</groupId>  
         <artifactId>log4j</artifactId>  
     </dependency>

     <!-- Spring 4.2..RELEASE -->  
     <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>

     <!-- Jackson -->  
     <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>

     <!-- Commons -->  
     <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>

     <!-- Mysql -->  
     <dependency>  
         <groupId>mysql</groupId>  
         <artifactId>mysql-connector-java</artifactId>  
     </dependency>

     <!-- c3p0 -->  
     <dependency>  
         <groupId>com.mchange</groupId>  
         <artifactId>c3p0</artifactId>  
     </dependency>

     <!-- hibernate-validator -->  
     <dependency>  
         <groupId>org.hibernate</groupId>  
         <artifactId>hibernate-validator</artifactId>  
     </dependency>

 </dependencies>

二、web.xml


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">


SSM

 <!-- 指定spring相关文件的位置 -->  
 <context-param>  
     <param-name>contextConfigLocation</param-name>  
     <param-value>classpath:spring-core.xml</param-value>  
 </context-param>

 <!-- 配置字符集过滤器 -->  
 <!-- 必须配置在所有过滤器的前面 -->  
 <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>  
 <!-- 配置项目的编码mapping -->  
 <filter-mapping>  
     <filter-name>encodingFilter</filter-name>  
     <url-pattern>/\*</url-pattern>  
 </filter-mapping>

 <!-- 开启spring功能 -->  
 <listener>  
     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
 </listener>  
 <!-- 防止内存溢出监听器 -->  
 <listener>  
     <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  
 </listener>

 <!-- 配置spring mvc -->  
 <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>  
 <!-- 配置spring mvc mapping -->  
 <servlet-mapping>  
     <servlet-name>springMvc</servlet-name>  
     <url-pattern>\*.action</url-pattern>  
 </servlet-mapping>

 <!-- 配置session超时时间，单位分钟 -->  
 <session-config>  
     <session-timeout>15</session-timeout>  
 </session-config>

 <!-- 设置欢迎页面 -->  
 <welcome-file-list>  
     <welcome-file>/index.jsp</welcome-file>  
 </welcome-file-list>

 <!-- 找不到页错误转向 -->  
 <error-page>  
     <error-code>404</error-code>  
     <location>/error/404.jsp</location>  
 </error-page>  
 <!-- 系统内部错误转向 -->  
 <error-page>  
     <error-code>500</error-code>  
     <location>/error/500.jsp</location>  
 </error-page>

三、Spring与SpringMVC的配置文件

1、Spring配置文件


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">

 <!-- 配置自动扫描的包 -->  
 <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>

2、SpringMVC的配置文件


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">

 <!-- 配置自动扫描的包，只扫描以下两种注解的文件 -->  
 <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>

 <!-- 配置视图解析器 -->  
 <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
     <property name="prefix" value="/WEB-INF/views/" />  
     <property name="suffix" value=".jsp" />  
 </bean>

 <!-- 静态资源处理 -->  
 <mvc:default-servlet-handler/>

 <mvc:annotation-driven></mvc:annotation-driven>

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" %>





Insert title here





 <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>


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