第六十天 how can I 坚持

　　贴点自己的代码吧。

　　AJAX提交后台json代码，获取返回值。

<%@ 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 test(){
alert("dafadsfa");
var xmlHttp;
if(window.XMLHttpRequest){
    xmlHttp=new XMLHttpRequest();
}
else if(window.ActiveXObject){
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
var saveJson='{'
    +'    "productInfo": {'
    +'        "insured_count": "1",'
    +'        "productPrice": "45",'
    +'        "startDate": "2015-05-31 00:00:00",'
    +'        "endDate": "2015-05-31 23:59:59",'
    +'        "productName": "测试产品",'
    +'        "showPeriod": "1D",'
    +'        "productId": "203401010",'
    +'        "productApp": "|00000000000000003476_Period=1D|00000000000000003475_TextAge=0Y-80Y|'
    +'00000000000000003483_Mult=1|00000000000000003484_AppDate=2D",                               '
    +'        "productDuty": "",                                                                 '
    +'        "shareId": ""                                                                      '
    +'    },                                                                                     '
    +'    "SDInformationAppnt": [                                                                '
    +'        {                                                                                  '
    +'            "applicantName": "尚小梅",                                                        '
    +'            "applicantIdentityTypeName": "身份证号码",                                          '
    +'            "applicantIdentityId": "",                                   '
    +'            "applicantMail": "",                                           '
    +'            "applicantMobile": ""                                               '
    +'        }                                                                                  '
    +'    ],                                                                                     '
    +'    "SDInformationInsured": [                                                              '
    +'        {                                                                                  '
    +'            "recognizeeName": "尚小梅",                                                       '
    +'            "recognizeeIdentityTypeName": "身份证号码",                                         '
    +'            "recognizeeIdentityId": "",                                  '
    +'            "recognizeeMobile": "",                                             '
    +'            "flightTime": "2015-07-19",                                  '
    +'            "recognizeeMail": "",                                          '
    +'            "isSelf": "Y",                                                                  '
    +'            "recognizeeBirthday": ""                          '
    +'        }                                                                              '
    +'    ],                                                                                     '
    
    +'    "SDInformationProperty": [                                                             '
    +'        {                                                                                  '
    +'            "remark1": ""                                                                  '
    +'        }                                                                                  '
    +'    ]                                                                                      '
    +'}                                                                                          ';
    xmlHttp.onreadystatechange=function()
      {
      if (xmlHttp.readyState==4 &&xmlHttp.status==200)
        {
        document.getElementById("myDiv").innerHTML=xmlHttp.responseText;
        }
      }
    //配置XMLHttpRequest对象
        xmlHttp.open("post", "../../shop/wap_order!saveOrdersInfo.action",true);
        //xmlHttp.open("post", "http://219.141.188.60:9080/shop/wap_order!saveOrdersInfo.action",true);
        xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); 
        //发送请求
        xmlHttp.send("saveJson="+saveJson);
}
</script>
</head>
<body>
<input type="button" value="提交" onclick="test()">
<div id="myDiv"/>

</body>
</html>

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原文地址：https://www.cnblogs.com/52-it/p/4544754.html