javascript请求方式总结

一、 通过herf来请求
二、通过获取表单来发送请求
三、通过ajax来请求（get,post）

首页建立前面四个请求的button:

处理方法如下：

/**第一种提交方式
 * */
function submitForm1(){

    window.location.href="../abc/href1?param=hrefMethod";
}
/**第二种提交方式
 * */
function submitForm2(){

    var form=document.forms[0];
    form.method="post";
    form.action="../abc/fromsub?param=formMethod";
    form.submit();
}

/**
 *第三种提交方式
 */
var xmlHttp;  
//创建xmlHttp  
function createXMLHttpRequest(){


    if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
        xmlHttp=new XMLHttpRequest();
    }else {// code for IE6, IE5
        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
}  

//Ajax使用get方式发送  
function submitForm3(){ 

    createXMLHttpRequest();
    var url="../abc/ajaxget?";  
    url=url+"¶m=" + new Date().getTime();  
    xmlHttp.onreadystatechange=handleStateChange;  
    xmlHttp.open("GET",url,true);  
    xmlHttp.send(null);  
}  

//Ajax使用post方式发送  
function submitForm4(){

    createXMLHttpRequest();  
    var url="../abc/ajaxpost?param=" + new Date().getTime();  
    xmlHttp.open("POST",url,true);  
    xmlHttp.onreadystatechange=handleStateChange;  
    xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");  
    xmlHttp.send("nihao");
}  

function handleStateChange(){ 

    if(xmlHttp.readyState==4){ 
        //解析返回值
        if(xmlHttp.status==200){
            var responseText=document.createTextNode(xmlHttp.responseText);
            alert("后台返回的返回值： "+xmlHttp.responseText);
        } 
    }  
}  

处理controller如下：

package com;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/abc")
public class ReceiveController {

    @RequestMapping("/login") 
    public String helloMvc1() {    

             return "login";  
        }

    @RequestMapping("/dologin") 
    public String dologin(HttpServletRequest request,HttpServletResponse response) {       
            String username=request.getParameter("username");
            String password=request.getParameter("password");
            request.setAttribute("username", username);
            System.out.println(username+password);

             return "admin";  
        }

    @RequestMapping("/href1") 
    public String herf(HttpServletRequest request,HttpServletResponse response) {      
            String param=request.getParameter("param");
            System.out.println(param);

             return "Test";  
        }

    @RequestMapping("/fromsub") 
    public String fromsub(HttpServletRequest request,HttpServletResponse response) {       
            String param=request.getParameter("param");
            System.out.println(param);

             return "Test";  
        }

    @RequestMapping("/ajaxget") 
    public String ajaxget(HttpServletRequest request,HttpServletResponse response) {       
            String param=request.getParameter("param");
            System.out.println(param);

             return "Test";  
        }

    @RequestMapping("/ajaxpost") 
    public String ajaxpost(HttpServletRequest request,HttpServletResponse response) {      
            String param=request.getParameter("param");
            System.out.println(param);

             return "Test";  
        }


}