convert json to hashmap java

toString (){ returnname+ ":" +Age}}Entities are simple, two fields, and of course the fields in an entity can be list or set type.Gson Gson= NewGson ();List Person>Persons= NewArrayList Person>(); for (intI= 0; I Ten; I++) {Person P= NewPerson ();P.setname ("name" +i);P.setage (i* 5);Persons.add (P);}String Str=Gson.tojson (persons);The above code focuses on the Gson object, which provides the Tojason () method to convert the object to a

Using Gson to convert a map to JSONGson (also known as Google Gson) is an open-source Java library published by Google, which uses either a serialized Java object as a JSON string or a drag-formatted JSON string as a Java object.

The method page for converting a JSON string to a Map object transmits a json string to the background action. You need to convert the json string to a Map object. Public Map ToMap (Object object) {Map Data = new HashMap (); //

Google's Protobuf object to JSON, not directly using tools such as Fastjson to convert, because PROTOBUF generated the object's Get method, the returned type has byte[], and only the string type can be used as the JSON key. Google offers a dedicated rack package that facilitates protobuf and JSON conversion. Here's how

When passing data through JSON, it is often necessary to pass the date, which in Java can be converted to JSON data in a specific format by Gson.1. Normal Gson Conversion Date void Query (httpservletrequest request, httpservletresponse response, Registerservice Service) throws Exception { = Integer.parseint (Request.getparameter ("id"));

Java JSON processing tool class Usage Details, json tool class This example shares the code of the JSON processing tool class for your reference. The details are as follows: Import java. io. IOException; import java. util. date; i

1. JSON strings in Java contain HTML tags/*** JSON contains HTML tags for text* @param str* @return*/public static string Switchstr (String str) {str = str.replace ("str = str.replace (">", "gt;");str = str.replace ("", "nbsp;");str = str.replace ("", "amp;");str = str.replace ("\ n", "return str;}For example, the JSON

is obtained by using the Get method of the type, based on the parsed data type, and the printout -String string =jarray.getstring (i); - System.out.println (string); in } -}Catch(jsonexception e) { to } + } - the}Reference:in Java, string and JSON convert each other: http://blog.csdn.net/miaozhenzhong/article/details/52585726Summary:If t