最近学习了一下spring mvc,其简单的配置和对ajax的支持让笔者真是眼前一亮,
在这里记录下来方便以后查询
首先定义UserController类,相当于struts里德action类
package com.alfa.action;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.alfa.model.Mail;
import com.alfa.model.User;
import com.alfa.service.FrontDesk;
@Controller
public class UserController {
@Autowired
private FrontDesk frontDesk;
@RequestMapping("/user/addTest")
public @ResponseBody User addTest(){
System.out.println("xxx");
User user = new User();
user.setId(1);
user.setUsername("xxx");
return user;
}
@RequestMapping("/user/addTest1")
@ResponseBody
public String addTest1(){
System.out.println("xxx");
User user = new User();
user.setId(1);
user.setUsername("xxx");
return "yyy";
}
@RequestMapping("/user/addTest2")
@ResponseBody
public List<User> addTest2(){
System.out.println("xxx2");
List<User> users = new ArrayList<>();
User user = null;
for (int i = 0; i < 5; i++) {
user = new User();
user.setId(i);
user.setUsername("xxx"+i);
users.add(user);
}
return users;
}
@RequestMapping("/user/addTest3")
@ResponseBody
public Map<String, Object> addTest3(){
System.out.println("xxx");
Map<String, Object> map = new HashMap<>();
map.put("str", "xxx");
map.put("csg", "xxx");
return map;
}
@RequestMapping("/user/addTest4")
@ResponseBody
public boolean addTest4(User user){
System.out.println(user.getId());
System.out.println(user.getUsername());
return true;
}
}
在src目录下创建一个spring-servlet.xml文件,也可以从下载的spring文档里copy,类似于struts.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:p="http://www.springframework.org/schema/p" 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-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" > <!-- 自动扫描action包里的带有@Contaoller注解的类--> <context:component-scan base-package="com.alfa.action"></context:component-scan> <mvc:annotation-driven/> <!-- 启动Spring MVC的注解功能,完成请求和注解POJO的映射请求映射--> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> </bean> </beans>
接下来就是web.xml
<servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping>
核心的就是这些配置,页面上的触发
javascript 代码
$.ajax({ type:'POST', url: '${ctx}/user/addTest.html', dataType : 'json', success: function(data){ alert("Data Saved: "+data.username); }, error:function(data){ alert("error1"); } });