convert json to csv java example

1. Json-lib is a Java class library that provides the ability to convert Java objects, including beans, maps, collections, Java Arrays and XML, to JSON, or reverse-transform.2. Json-lib

1. Json-lib is a Java class library that provides the ability to convert Java objects, including beans, maps, collections, Java Arrays and XML, to JSON, or reverse-transform.2. Json-lib

First, import the following jar packagesHere are the various types of programs that convert to JSON and extract data from JSONPackage Jsontest;import Java.util.arraylist;import java.util.hashmap;import java.util.list;import java.util.Map; Import Net.sf.json.jsonarray;import Net.sf.json.jsonobject;public class Jsonmain {public static void main (string[] args ) {GetList (setlist ()); Getmap (Setmap ()); Syste

/***** JSON = [{ID: 1}, {ID: 2}] convert "[{ID: 1}, {ID: 2}] "*****/Jsontostring = function (OBJ ){If (OBJ = undefined ){Return "";}VaR r = [];If (typeof OBJ = "string") Return "\" "+ obj. replace (/([\ "\])/g," \ $1 "). replace (/(\ n)/g, "\ n "). replace (/(\ r)/g, "\ r "). replace (/(\ t)/g,"\ T") + "\"";If (typeof OBJ = "object "){If (! OBJ. Sort ){For (var I in OBJ)R. Push ("\" "+ I +" \ ":" + Modeler.

Suppose we have obtained a Java object on the server side, and now we are considering how to convert this Java object into a string that complies with the JSON syntax. Of course, we can write a set of algorithms to implement this conversion, but it is troublesome, especially when the object has many attributes or the a

JsonConfig config = new JsonConfig ();Config. setJsonPropertyFilter (new PropertyFilter (){@ Override Public boolean apply (Object arg0, String arg1, Object arg2 ){ // Filter out attributes of an object that contain itself (associate yourself)If (arg1.equals ("wareTypes") | arg1.equals ("skillS ")){ Return true; } Else { Return false; } } }); // Convert to JSON JSONArray

]['Date'] Print 'Wind Direction:'+ weather['Data']['Forecast'][i]['Fengxiang'] Print 'Wind:'+ weather['Data']['Forecast'][i]['Fengli'] Print 'High Temperature:'+ weather['Data']['Forecast'][i][' High'] Print 'Low Temperature:'+ weather['Data']['Forecast'][i][' Low'] Print 'weather:'+ weather['Data']['Forecast'][i]['type'] Print('-'* 50) Else: Print 'The city you entered is wrong, or the city you entered is not included i

Opencsv is a simple Java class library for parsing CSV files that encapsulates the output and reading of CSV format files, automates the processing of special characters in CSV format, and most importantly opencsv can be used for commercialization (commercial-friendly). Specific methods of use: Read

. jsonarray; import net. SF. JSON. jsonfunction; import net. SF. JSON. jsonobject; public class jsontest {public static void main (string ARGs []) {// javaarray and JSON convert javaarrayandjsoninterchange (); system. out. println ("-----------------------------------"); // javalist and

/value" pairs ". Example: an object of a person: {"name": "", "Age": 24} 2. An array is an ordered set of values. (1) An array starts with "[" (left brackets) and ends with "]" (right brackets. (2) Use commas (,) to separate values. Example: A group of students {"student": [{"name": "Xiao Ming", "Age": 23 },{ "name": "", "Age": 24}]} Note: This Json object includ

JSON object + * @paramCLS A * @paramobj the * @return + */ - Public StaticJsonobject Getjson (classcls, Object obj) { $Jsonobject JSON =NewJsonobject (); $field[] Fieldarray =cls.getdeclaredfields (); - for(Field field:fieldarray) { -String FieldName =field.getname (); theString methodName = "Get" + fieldname.substring (0, 1). toUpperCase () + fieldname.substring (1); -

() method in JS to parse the JSON string into a JSON object and then traverse it for front-end use. Let's get to the bottom of the list of the interactions between JSON and Java objects in Java. To achieve the mutual transfer between