com.alibaba
fastjson
1.2.72
二、API使用
（1）待解析的json字符串
json在线解析：
https://www.sojson.com/
String source = "{\"tSpeakUrl\":\"http://openapi.youdao.com/ttsapi?q=Brofjorden&langType=zh-CHS&sign=BDB192C3B71100805BE44500E1B9C8B1&salt=1594364869753&voice=4&format=mp3&appKey=2fddf5eb3360f6c6\",\"RequestId\":\"d596183f-ceb9-460d-864d-f8c41f7d950e\",\"web\":[{\"value\":[\"布罗夫约尔丹\",\"布罗福德港\",\"布罗弗约登\",\"港口名\"],\"key\":\"Brofjorden\"}],\"query\":\"Brofjorden\",\"translation\":[\"Brofjorden\"],\"errorCode\":\"0\",\"dict\":{\"url\":\"yddict://m.youdao.com/dict?le=eng&q=Brofjorden\"},\"webdict\":{\"url\":\"http://m.youdao.com/dict?le=eng&q=Brofjorden\"},\"l\":\"en2zh-CHS\",\"isWord\":false,\"speakUrl\":\"http://openapi.youdao.com/ttsapi?q=Brofjorden&langType=en&sign=BDB192C3B71100805BE44500E1B9C8B1&salt=1594364869753&voice=4&format=mp3&appKey=2fddf5eb3360f6c6\"}\n";
（2）创建 JSONObject 对象
JSONObject jsonObject = new JSONObject(source);
（3）JSONObject 转 Map
Map jsonMap = jsonObject.toMap();
（4）遍历Map
public static void foreachJsonMap(Map jsonMap) {
// 遍历jsonMap
Set> set = jsonMap.entrySet();
set.forEach( entry -> {
String key = entry.getKey();
Object valueObj = entry.getValue();
System.out.println(key + "\t\t" + valueObj);
}
（5）解析json字符串对象
public static Map jsonObjectToMap(Object object) {
String source = object.toString().substring(1,object.toString().length()-1).replace("=",":");
JSONObject jsonObject = new JSONObject(source);
Map objectMap = jsonObject.toMap();
objectMap.forEach((key,value) -> System.out.println(key + "\t" + value));
return objectMap;
}
三、测试代码
import org.json.JSONObject;
import java.util.Map;
import java.util.Set;
public class JsonUtil {
public static void main(String[] args) {
String source = "{\"tSpeakUrl\":\"http://openapi.youdao.com/ttsapi?q=Brofjorden&langType=zh-CHS&sign=BDB192C3B71100805BE44500E1B9C8B1&salt=1594364869753&voice=4&format=mp3&appKey=2fddf5eb3360f6c6\",\"RequestId\":\"d596183f-ceb9-460d-864d-f8c41f7d950e\",\"web\":[{\"value\":[\"布罗夫约尔丹\",\"布罗福德港\",\"布罗弗约登\",\"港口名\"],\"key\":\"Brofjorden\"}],\"query\":\"Brofjorden\",\"translation\":[\"Brofjorden\"],\"errorCode\":\"0\",\"dict\":{\"url\":\"yddict://m.youdao.com/dict?le=eng&q=Brofjorden\"},\"webdict\":{\"url\":\"http://m.youdao.com/dict?le=eng&q=Brofjorden\"},\"l\":\"en2zh-CHS\",\"isWord\":false,\"speakUrl\":\"http://openapi.youdao.com/ttsapi?q=Brofjorden&langType=en&sign=BDB192C3B71100805BE44500E1B9C8B1&salt=1594364869753&voice=4&format=mp3&appKey=2fddf5eb3360f6c6\"}\n";
System.out.println(source);
// 创建json对象
JSONObject jsonObject = new JSONObject(source);
// json对象转map
Map jsonMap = jsonObject.toMap();
// 根据key返回value值
Object web = jsonMap.get("web");
System.out.println(web);
// 遍历json
System.out.println("\n=======================================================================================================================================\n");
foreachJsonMap(jsonMap);
public static void foreachJsonMap(Map jsonMap) {
// 遍历jsonMap
Set> set = jsonMap.entrySet();
set.forEach( entry -> {
String key = entry.getKey();
Object valueObj = entry.getValue();
System.out.println(key + "\t\t" + valueObj);
if(key.equals("web")){
// jsonObjectToMap(valueObj);
* 解析json字符串里的对象，放回 Map
* @param object
* @return Map
public static Map jsonObjectToMap(Object object) {
String source = object.toString().substring(1,object.toString().length()-1).replace("=",":");
JSONObject jsonObject = new JSONObject(source);
Map objectMap = jsonObject.toMap();
objectMap.forEach((key,value) -> System.out.println(key + "\t" + value));
return objectMap;
}
四、运行效果
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本文分享自作者个人站点/博客：
https://blog.csdn.net/qq262593421
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