convert json to hashmap java

1. Encodingserialization (UrlEncode encoding): UrlEncode encodedString a= "[{\" clubno\ ": \" 10000002\ ", \" clubtype\ ": \" 1\ "},{\" clubno\ ": \" 10000003\ ", \" clubtype\ ": \" 4\ "},{\" clubno\ ": \" 10000004\ ", \" clubtype\ ": \" 3\ "}]";Encode string A through UrlEncode: a = Java.net.URLEncoder.encode (A, "utf-8");deserialization (UrlDecode decoding):String a= "%5b%7b%22clubno%22%3a%2210000002%22%2c%22clubtype%22%3a%221%22%7d%2c%7b%22clubno%22%3a%2210000003%22% 2C%22CLUBTYPE%22%3A%224%

1. convert an object to a json string with a return value of a JSON stringpublic static String ToJson (Object value) {try {return mapper.writevalueasstring (value);} catch (Exception e) {E.printstacktrace ();}return null;}2. Convert the JSON string to an Entity object and r

1. What is JSON serialization and binary serializationUsually we use JSON as a transmission in the program, and JSON is serialized as JSON. and binary serialization is usually when we convert the data to binary for transmission, and then we do all kinds of conversion operati

Java Dynamic JSON data parsing You may wonder what it isDynamic json dataIn fact, I am not very sure about this name. Let's call it for the time being. When I developed a Law Enforcement recorder (the background does not know how to implement it ), when obtaining the video image information on the recorder,UniqueJson data in this format [ { file1: date1

; } Public voidsetName (String name) { This. Name =name; } PublicString getage () {returnAge ; } Public voidsetage (String age) { This. Age =Age ; } }String UserS = "{' name ': ' Dr. Sisi ', ' age ': '+ ' == (UserBean) jsonobject.tobean (obj, UserBean. Class); System.out.println (Userbean.getname ());String converted to ListString arraystring= "[' A ', ' B ', ' CCC ']"; Jsonarray Jsonarray=jsonarray.fromobject (arraystring); object[] arr=jsonarray.toarray (); System.out.println (arr

() +" \ ""; }Else if(OinstanceofDate) { return"\" "+o.tostring () +" \ ""; } returnSimpleobjecttojson (o); } @SuppressWarnings ("Unchecked") PublicString Listtojson (List list) {SF=NewStringBuffer ("["); for(inti = 0;i ) {sf.append (Convertjson (List.get (i) )+ ","); } returnSf.tostring (). substring (0,sf.tostring (). Length ()-1) + "]"; } @SuppressWarnings ("Unchecked") PublicString Maptojson (map map) {SF=NewStringBuffer ("["); Iterator ite=Map.entryset ().

First we introduce the next map and object conversion code. The specific code looks like this: /** * Use org.apache.commons.beanutils for conversion/class A {public static Object Maptoobject (map Here's a brief introduction to the transformation of map and JSON First paragraph code map Second paragraph code public static void Readjson2map (String json) { Objectmapper objectmap

1. Data returned from the front endfunctionGetdatainitbarview () {varUrl= "${contextpath}/customer/findresultbyindicatorcodesandcycletype"; varindicatorcodes=[{"code": "003002003003001", "Type": "4", "Cyclevalue": 4}, {"Code": "003002003003002", "Type": "5"}, {"Code": "003002003003003", "Type": "5"}]; varparam={ "Fullyear": Fullyear,"Indicatorcodes": Indicatorcodes,"Deptcode": "0306"} getData (Param,u

Use the Net.sf.json package to convert the XML string to Jsonobject:Introducing Maven Dependencies:Dependency> groupId>Net.sf.json-libgroupId> Artifactid>Json-libArtifactid> version>2.2.2version> classifier>Jdk15classifier>Dependency>Java code:Import Net.sf.json.xml.XMLSerializer; Import Net.sf.json.JSONArray; Import Net.sf.json.JSONObject; {

(URLClassLoader.java:366)at java.net.URLClassLoader$1.run(URLClassLoader.java:355)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:354)at java.lang.ClassLoader.loadClass(ClassLoader.java:425)at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)at java.lang.ClassLoader.loadClass(ClassLoader.java:358)... 13 more 2. Error cause /*** Convert List to

1. Error descriptionException in thread "main" Java.lang.noclassdeffounderror:org/apache/commons/logging/logfactoryat Net.sf.json.abstractjson.2. Cause of error/** * Convert List to JSON */package com.you.model;import java.util.arraylist;import Java.util.list;import net.sf.json.jsonarray;/** * @author Youhaidong * */public class Listtojson {/** * @param args */public static void main (St Ring[] args) {lista

1. Error descriptionException in thread "main" Java.lang.noclassdeffounderror:org/apache/commons/beanutils/dynabeanat Net.sf.json.abstractjson._processvalue (abstractjson.java:230) at Net.sf.json.jsonarray._processvalue ( jsonarray.java:2513) at Net.sf.json.JSONArray.processValue (jsonarray.java:2538) at Net.sf.json.JSONArray.addValue ( jsonarray.java:2525) at Net.sf.json.jsonarray._fromcollection (jsonarray.java:1056) at Net.sf.json.JSONArray.fromObject (jsonarray.java:123) at Net.sf.json.JSONA

Import Net.sf.json.jsonarray;import Net.sf.json.jsonobject;public class Jsontest {public static void main (string[] args {String Jostr = "{name:\" Zhang San \ ", age:\" 20\ "}";//Convert the JSON string to Jsonobjectjsonobject Jsonobject = Jsonobject.fromobject ( JOSTR);//GetString ("") to remove the information inside the string name = Jsonobject.getstring ("name"); String age = jsonobject.getstring ("Age"

String objtoxml (Object obj) {//xs.aliasp Ackage (name, pkgname); return xs.toxml (obj);} public static void Main (string[] args) {person p = new person ();p. Setage (;p. Setusername ("Chiwei"); PhoneNumber pn = new PhoneNumber ();p n.setcode (188);p N.setnumber (67101080);p. SETPN (PN); Xs.alias ("Person", Person.class); String xml = Objtoxml (p); Person per = (person) xs.fromxml (XML); SYSTEM.OUT.PRINTLN (XML); System.out.println (Per.getusername ());}}The above code first generates an object

Java converts Json Date/Date (1487053489965 + 0800)/format and js time format Tue Feb 14 2017 14:06:32 GMT + 0800, json1487053489965 /Date (1487053489965 + 0800)/how to convert it to yyyy-MM-dd format in Java How to convert Tue Feb 14 2017 14:06:32 GMT + 0800 to yyyy-MM-dd f

GDAL's java environment configuration and Analysis of converting shp to json Overview: Two days ago, a colleague asked me another question. The question was probably like packing the shp data bit zip format and uploading it. After the upload is complete, it will be displayed on the web. This requirement was previously met on Arcgis Online, so I am still familiar with it, so I told him: First decompress the

This. City =City ; at } -}Conversion code:1Objectmapper Objectmapper =NewObjectmapper ();2 3Place hometown =NewPlace ();4Hometown.setprovince ("Guangdong");5Hometown.setcity ("Jieyang");6 7Place Place1 =NewPlace ();8Place1.setprovince ("Fujian");9Place1.setcity ("Amoy");Ten OnePlace Place2 =NewPlace (); APlace2.setprovince ("Zhejiang"); -Place2.setcity ("Hangzhou"); - thelistNewArraylist(); - Places.add (Place1); - Places.add (PLACE2); -Student Student = generatestudent ("Dacui",

Java code /** * A list of answer objects is formed based on the information entered by the user on the page. * * @ Param answers * @ Param question_ids * @ Param types * @ Return */ Private list Int [] types, int [] scores ){ List If (studenanswers! = NULL question_ids! = NULL types! = NULL scores! = NULL ){ For (INT I = 0; I Answer answer = new answer (); String studenanswer = studenanswers [I]; Int type = types [I]; Int q

:366) at Java.net.urlclassloader$1.run (urlclassloader.java:355) at Java.security.AccessController.doPrivileged (Native Method) at Java.net.URLClassLoader.findClass ( urlclassloader.java:354) at Java.lang.ClassLoader.loadClass (classloader.java:425) at sun.misc.launcher$ Appclassloader.loadclass (launcher.java:308) at Java.lang.ClassLoader.loadClass (classloader.java:358) ... More2. Cause of error/** * Convert List to

1. Error descriptionException in thread "main" Java.lang.noclassdeffounderror:org/apache/commons/collections/map/listorderedmapat Net.sf.json.jsonobject.2. Cause of error/** * Convert List to JSON */package com.you.model;import java.util.arraylist;import Java.util.list;import net.sf.json.jsonarray;/** * @author Youhaidong * */public class Listtojson {/** * @param args */public static void main (St Ring[] ar