JAVA代碼解析String字符串(json格式的)

java解析String字符串(json格式)

　　需要jar包：json-lib-2.4-jdk15.jar

一、

　　String str = "{\"name\":\"zhangsan\",\"password\":\"zhangsan123\",\"email\":\"[e-mail]\"}";

　　此時用JSONObject：

　　　　

String str = "{\"name\":\"zhangsan\",\"password\":\"zhangsan123\",\"email\":\"[e-mail]\"}";
JSONObject json = JSONObject.fromObject(str);
System.out.println(json.getString("name"));

 

 

 

 

二、

　  String jsonString = "[{\"name\":\"zhangsan\",\"password\":\"zhangsan123\",\"email\":\"[e-mail]\"}"

　　　　　　　　　　　　+ ",{\"name\":\"lisi\",\"password\":\"lisi123\",\"email\":\"[e-mail]\"}]";

　　此時用JSONArray:

 

String jsonString = "[{\"name\":\"zhangsan\",\"password\":\"zhangsan123\",\"email\":\"[e-mail]\"}"
    + ",{\"name\":\"lisi\",\"password\":\"lisi123\",\"email\":\"[e-mail]\"}]";
JSONArray jsonArray = JSONArray.fromObject(jsonString);
for(int i = 0 ;i < jsonArray.size() ; i++){
    System.out.println("name = "+jsonArray.getJSONObject(i).getString("name"));
    System.out.println("password = "+jsonArray.getJSONObject(i).getString("password"));
    System.out.println("email = "+jsonArray.getJSONObject(i).getString("email"));
}

 

 

　　　　

兩個的輸出結果為：

zhangsan
=========================================
name = zhangsan
password = zhangsan123
email = [e-mail]
name = lisi
password = lisi123
email = [e-mail]