convert json to hashmap java

The example is how to convert a Student object to a JSON string, and in practice we can convert any Java class to a JSON string, and the implementation is very simple, you just need to create an Gson instance, then pass the object that will be converted to the

First,the application of JsonarrayGet the corresponding Java array from the JSON array, and if you want to get the elements in the Java array, you only need to traverse the array./* * Use the ToArray () method under the corresponding Java array * Jsonarray from the JSON arra

Error in converting List to JSON in Java (3), javajson 1. Error description Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpherat net.sf.json.util.CycleDetectionStrategy. 2. Error cause From the phrase "Caused by: java. lang. ClassNotFoundException: net. sf. ezmorph. Morpher", we can see that jar is missing. 3. Solution Copy the

Error in converting List to JSON in Java (4) 1. Error description Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections/map/ListOrderedMapat net.sf.json.JSONObject. (JSONObject.java:1450)at net.sf.json.util.CycleDetectionStrategy. (CycleDetectionStrategy.java:37)at net.sf.json.JsonConfig. (JsonConfig.java:65)at net.sf.json.JSONArray.fromObject(JSONArray

Error in converting List to JSON in Java (2) 1. Error description Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactoryat net.sf.json.AbstractJSON. (AbstractJSON.java:53)at com.you.model.ListToJSON.main(ListToJSON.java:29)Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactoryat java.net.URLClassLoader$1.run(URLClassLoader.java:366)a

Excerpt from: http://www.cnblogs.com/lilh/p/5352499.htmlGenerally, the picture can be transmitted in the form of a stream, even if it is transmitted by JSON, it is generally an address, and the picture exists on the server, and then send a request to download images along the address.But in this company's project, the picture is in the Oracle database of the BLOB field, and there is no server, that is, I have to pass the picture itself, and

Unity3d uses json to communicate with the java Server Unity3d json can be used with LitJson Download LitJson and copy it to the Unity3d working directory. So we can implement Send the following request to the server and parse it System. collections. hashtable headers = new System. collections. hashtable (); headers. add ("Content-Type", "application/x-www-form-

1. Using the Fastjson.jar Package2. Converting a string into a list result setlist3. Converting a string into a Java objectTest test = Json.parseobject ("JSON string", Test.class);4. Convert objects to JSON charactersString str = json.tojsonstring ("Java object");5. Stitchi

Official website: http://json-lib.sourceforge.net/The jar package that needs to be prepared1. Json-lib-2.4-jdk15.jar Current latest version, http://sourceforge.net/projects/json-lib/files/2. HttpClient is used to provide efficient, up-to-date, feature-rich client programming toolkits that support the HTTP protocol. http://hc.apache.org/downloads.cgi3. Commons Lan

String toString () {return name + ': ' +age } } The entity is very simple, two fields, of course, the field in the entity can also be a list or set type. Gson Gson = new Gson (); list The above code focuses on the Gson object, which provides the Tojason () method to convert the object to a JSON string, with the Str object value of the above code: [{"name":"name0","age":0},{"n