struts通过注解与jQuery进行action请求

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struts通过注解与jQuery进行action请求，可以省略struts.xml对action的配置。

1.新建action类UserLoginAction。

UserLoginAction.java代码如下:

package com.hsinghsu.testSSH.action;import javax.annotation.Resource;import org.apache.struts2.convention.annotation.Action;import org.apache.struts2.convention.annotation.Namespace;import org.apache.struts2.convention.annotation.ParentPackage;import org.apache.struts2.convention.annotation.Result;import org.springframework.context.annotation.Scope;import org.springframework.stereotype.Component;import org.springframework.stereotype.Controller;import com.hsinghsu.testSSH.service.UserService;@Controller@Scope("prototype")@Component("configpagerAction")@ParentPackage("json-default")@Namespace(value = "/action/user")public class UserLoginAction extends BaseAction {/** *  */private static final long serialVersionUID = -877192845581603852L;private String username;  private String password;private String address;@Resource(name = "userService")    protected UserService userService;@Override    @Action(value = "userLogin", results = {@Result(name = "success", type = "json")})    public String execute() throws Exception     {System.out.println("userLogin username:"+username+" password:"+password);if(userService.login(username,password))  {address = "test address SUCCESS" ;}        return SUCCESS;    }public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}}

2.编写前台jsp页面。注意添加jquery-1.7.2.min.js。
userLogin.jsp代码如下：

<%@ page language="java" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><title>Insert title here</title></head><script src="jquery-1.7.2.min.js" type="text/javascript"></script><script type="text/javascript">function onClick(){   //alert($("#username").val());//jquery获取input值   //alert(document.getElementById("username").value);//js获取input值       param = {    username: $("#username").val(),    password: document.getElementById("password").value    };   $.ajax({        url:'../action/user/userLogin.action',        type: "POST",//提交方式post        data: param,//传递参数        //dataType:'json',        //async:false,//关闭异步，按照顺序执行        success: function(result){        $("#addr").val(result.address);//jquery设置input值        },        error :function(e){        //console.warn('error',e);        }           });}</script><body><form>          Username:<input id="username" type="text"/><br/>          Password:<input id="password" type="password"/><br/>          <input type="button" onclick="onClick()" value="SUBMIT"/> <br/>        GetAddress Result:<input id="addr" type="text"/><br/>     </form></body></html>

最后启动tomcat直接通过http://localhost:8686/testSSH/jsp/userLogin.jsp进行页面访问。

注：

i.添加包struts2-convention-plugin-2.3.4.jar，用于struts注解
ii.添加包struts2-json-plugin-2.3.4.jar，用户json数据操作
iii.添加包asm-3.3.jar、asm-commons-3.3.jar