java json字符串处理

使用Java操作JSON字符串对象
http://www.blogjava.net/Werther/archive/2010/01/20/310262.html

Java解析Json(org.json,json-lib)

http://ysj5125094.iteye.com/blog/1633238

代码样例：

// 输出结果为{"version": 4,"addr": "192.160.1.11"}
private static void test1()
{

String s = "{\"internal_1\": [{\"version\": 4,\"addr\": \"192.160.1.11\"}]}";
String regex = ".+?\\[(.+?)\\].+?";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(s);
if (matcher.matches()) {
String group = matcher.group(1);
System.out.println(group);
}else {
System.out.println("no matches!!");
}
}

// 输出结果为{"Done":1,"ReturnType":1,"Msg":"HELLO,上海"}
private static void test2()
{
String s="TestJsonResponse{TestJsonResult={\"Done\":1,\"ReturnType\":1,\"Msg\":\"HELLO,上海\"};}";
String regex = ".+?\\=(.+?)\\;.+?";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(s);
if (matcher.matches()) {
String group = matcher.group(1);
System.out.println(group);
}else {
System.out.println("no matches!!");
}
}

//结果为HELLO,上海
private static void test3()
{

/*JSONObject jsonObject = new JSONObject();
try {
jsonObject.put("a", 1);
jsonObject.put("b", 1.1);
jsonObject.put("c", 1L);
jsonObject.put("d", "test");
jsonObject.put("e", true);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

System.out.println(jsonObject); // 输出{"d":"test","e":true,"b":1.1,"c":1,"a":1}
try {
System.out.println(jsonObject.getString("d"));// 输出test
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} */

String s="{\"Done\":1,\"ReturnType\":1,\"Msg\":\"HELLO,上海\"}";
try {
JSONObject jsonObject2 = new JSONObject(s);
System.out.println(jsonObject2.getString("Msg")); // 输出HELLO,上海
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}