json嵌套前后台解析及jsp中EL获取【我】

后台java解析

package com.test;

import java.util.List;
import java.util.Map;

import com.alibaba.fastjson.JSONObject;

public class Json1 {

    public static void main(String[] args) {

//        String reqJson = _request.getParameter("reqJson");
        String reqJson = "{\"idExpDate\":\"2099-12-31\",\"partyName\":\"华夏银行股份有限公司\",\"partyNumber\":\"BJ2018122110041065\",\"identityType\":\"2\",\"custTree\":{\"custTreeTopNodeCode\":\"100207\",\"controlArea\":\"\",\"controlAreaTop\":\"\",\"custTreeTopName\":\"华夏银行股份有限公司\",\"custTreeNodeCode\":\"100207\",\"controlDepTop\":\"13007005\",\"controlTypeTop\":\"13013001\",\"controlType\":\"13013001\",\"custTreeName\":\"华夏银行股份有限公司\",\"controlDep\":\"13007005\"},\"orgUscc\":\"9111000010112001XW\",\"partyCert\":[{\"certNum\":\"qazwsxed3\",\"certType\":\"\",\"partyCertId\":\"259941363\"},{\"certNum\":\"9111000010112001XW\",\"certType\":\"49\",\"partyCertId\":\"820108430\"}],\"industryCd\":\"DD0302\",\"isAvailable\":\"1\",\"idEffDate\":\"1992-10-14\",\"industryTypeId\":\"177\",\"orgStatusCd\":\"4\",\"partyId\":\"259941363\",\"registerAddr\":\"北京市东城区建国门内大街22号\"}";
        JSONObject jsonData = JSONObject.parseObject(reqJson);
        String partyName = String.valueOf(jsonData.get("partyName"));
        List<Map<String, String>> partyCertList = (List<Map<String, String>>) jsonData.get("partyCert");
        for (int i = 0; i < partyCertList.size(); i++) {
            Map partyCertMap = partyCertList.get(i);
            System.out.println(partyCertMap);
        }
    }
}

/*

{
    "idExpDate": "2099-12-31",
    "partyName": "华夏银行股份有限公司",
    "partyNumber": "BJ2018122110041065",
    "identityType": "2",
    "custTree": {
        "custTreeTopNodeCode": "100207",
        "controlArea": "",
        "controlAreaTop": "",
        "custTreeTopName": "华夏银行股份有限公司",
        "custTreeNodeCode": "100207",
        "controlDepTop": "13007005",
        "controlTypeTop": "13013001",
        "controlType": "13013001",
        "custTreeName": "华夏银行股份有限公司",
        "controlDep": "13007005"
    },
    "orgUscc": "9111000010112001XW",
    "partyCert": [
        {
            "certNum": "qazwsxed3",
            "certType": "",
            "partyCertId": "259941363"
        },
        {
            "certNum": "9111000010112001XW",
            "certType": "49",
            "partyCertId": "820108430"
        }
    ],
    "industryCd": "DD0302",
    "isAvailable": "1",
    "idEffDate": "1992-10-14",
    "industryTypeId": "177",
    "orgStatusCd": "4",
    "partyId": "259941363",
    "registerAddr": "北京市东城区建国门内大街22号"
}


*/

前台jsp获取：

<script type="text/javascript">
    var regionType='${sessionScope.SSO_AUTH_USER.regionType}';
    var handleOrgId='${sessionScope.SSO_AUTH_USER.orgId}';
    var systemUserId = '${sessionScope.SSO_AUTH_USER.acctId}';
    var staffId = '${sessionScope.SSO_AUTH_USER.staff_id}';
    var regionCode = '${sessionScope.SSO_AUTH_USER.regionCode}';
    //跳转页面时的请求json，内涵party信息
    var reqJson = ${map.reqJson};
</script>

注意：如果map.reqJson的值是一个json串，那么在EL表达式这里不要加 双/单 引号。

前台js解析：

$(function() {
    //任意获取一组有效的partyCert,并去掉多余属性
    var pratyCertArr = reqJson.partyCert;
    var certNum = "";
    var certType = "";
    $.each(pratyCertArr, function(i, item) {
        if(item.certNum && item.certType){
            certNum = item.certNum;
            certType = item.certType;
            return false;
        }
    }); 
    delete reqJson["partyCert"];
    reqJson.certNum = certNum;
    reqJson.certType = certType;
    delete reqJson["custTree"];
//    alert(JSON.stringify(reqJson));
     init();
});