Spring MVC 处理AJAX请求
1.视图View的jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>
<script type="text/javascript">
function ajaxFunction() {
var xmlHttp;
try {
xmlHttp = new XMLHttpRequest();
} catch (e) {
try {
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
alert("您的浏览器不支持AJAX！");
return false;
}
}
}
return xmlHttp;
}
function sendAjaxReq() {
var xmlHttp = ajaxFunction();//创建一个xmlHttpRequest对象
xmlHttp.open("GET", "ajax?id=2");//向处理器controller发送请求，表示发送给方法名为ajax()方法
xmlHttp.setRequestHeader("accept", "application/json");//设置请求头
xmlHttp.onreadystatechange = function() {//编写回调函数
// alert(xmlHttp.readyState);
// if (xmlHttp.readyState == 4) {
// eval("var result=" + xmlHttp.responseText);
// alert("["+result[0].id+","+result[0].name+","+result[0].age+","+result[0].salary+"]");
// }
eval("var result=" + xmlHttp.responseText);//可以百度eval的作用
//将请求结果显示在页面上
document.getElementById("div1").innerHTML = "["+result[0].id+","+result[0].name+","+result[0].age+","+result[0].salary+"]";
document.getElementById("div2").innerHTML = "["+result[1].id+","+result[1].name+","+result[1].age+","+result[1].salary+"]";
}
xmlHttp.send(null);
}
</script>
</head>
<body>
<a href="javascript:void(0);" onclick="sendAjaxReq()">Ajax请求</a>
<div id="div1"></div>
<div id="div2"></div>
</body>
</html>
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2.SpringMVC-servlet.xml的配置
<?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:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
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
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
<!-- <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" /> -->
<!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> -->
<!-- <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" /> -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="cacheSeconds" value="0" />
<property name="messageConverters">
<list>
<bean
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>
</list>
</property>
</bean>
<!-- ViewResolver -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/" />
<property name="suf