JAVA代码解析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":"10371443@qq.com"}";

　　此时用JSONObject：

　　　　

String str = "{"name":"zhangsan","password":"zhangsan123","email":"10371443@qq.com"}";
JSONObject json = JSONObject.fromObject(str);
System.out.println(json.getString("name"));

二、

　  String jsonString = "[{"name":"zhangsan","password":"zhangsan123","email":"10371443@qq.com"}"

　　　　　　　　　　　　+ ",{"name":"lisi","password":"lisi123","email":"1435123@qq.com"}]";

　　此时用JSONArray:

String jsonString = "[{"name":"zhangsan","password":"zhangsan123","email":"10371443@qq.com"}"
    + ",{"name":"lisi","password":"lisi123","email":"1435123@qq.com"}]";
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"));
}

　　　　

两个的输出结果为：

zhangsan
=========================================
name = zhangsan
password = zhangsan123
email = 10371443@qq.com
name = lisi
password = lisi123
email = 1435123@qq.com