Fastjson解析嵌套Map例子

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.15</version>
</dependency>

{
"actId": "1800025",
"originCode": 1,
"role": "TEACHER",
"time": 1471077017804,
"userId": "1111",
"userName": "测试教师",
"userIcon": "xyz",
"userIp": "1.1.1.1",
"countyId": "370105",
"countyName": "天桥区",
"schoolId": "1234",
"schoolName": "测试小学",
"data": {
"subjectId": "020",
"subjectName": "数学",
"uploadFileList": [
{
"teachFileType": "1",
"custom": "xtz"
},
{
"teachFileType": "1"
}
]
}
}

import com.alibaba.fastjson.JSON;

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

/**
* Created by Administrator on 2016/8/12.
*/
public class ParserJson {

/***
*
* @param map 需要打印的Map结构
*/
public static void showMap(Map<String,Object> map){
for(Map.Entry<String,Object> kv:map.entrySet()){
System.out.println(kv.getKey()+"  "+kv.getValue());
}
}

public static void main(String[] args) throws Exception {

String json="{\"actId\":\"2300003\",\"originCode\":1,\"role\":\"TEACHER\"" +
",\"time\":1470126407000,\"userId\":\"1111\",\"userName\":\"测试教师\",\"userIcon\":\"xyz\",\"userIp\":\"1.1.1.1\",\"countyId\":\"370105\",\"countyName\":\"天桥区\",\"schoolId\":\"1234\",\"schoolName\":\"测试小学\",\"data\":{\"subjectId\":\"020\",\"subjectName\":\"数学\"," +
"\"uploadFileList\":[{\"teachFileType\":\"1\"},{\"teachFileType\":\"1\",\"custom\":\"xt\"},{\"teachFileType\":\"1\"}]}}";

Map<String,Object> map=(Map)JSON.parse(json);
System.out.println("打印第一层map");
showMap(map);
Map<String,Object> dataMap=(Map<String, Object>) map.get("data");
System.out.println("打印第二层map");
showMap(dataMap);
System.out.println("打印第三层list+map");
List<Map<String,Object>> fileList= (List<Map<String, Object>>) dataMap.get("uploadFileList");
for(Map<String,Object> soj:fileList){
System.out.println(soj);
Map<String,Object> detailData=soj;
showMap(detailData);
System.out.println("----------------------------------------");
}

}

}

ParserJson
打印第一层map
role  TEACHER
data  {"uploadFileList":[{"teachFileType":"1"},{"custom":"xt","teachFileType":"1"},{"teachFileType":"1"}],"subjectId":"020","subjectName":"数学"}
actId  2300003
userName  测试教师
userId  1111
countyId  370105
schoolId  1234
userIp  1.1.1.1
originCode  1
time  1470126407000
userIcon  xyz
schoolName  测试小学
countyName  天桥区
打印第二层map
uploadFileList  [{"teachFileType":"1"},{"custom":"xt","teachFileType":"1"},{"teachFileType":"1"}]
subjectId  020
subjectName  数学
打印第三层list+map
{"teachFileType":"1"}
teachFileType  1
----------------------------------------
{"custom":"xt","teachFileType":"1"}
custom  xt
teachFileType  1
----------------------------------------
{"teachFileType":"1"}
teachFileType  1
----------------------------------------

Process finished with exit code 0