JarCastingOverview
This project contains JSON and XML parser and parser generator. You can generate a parser for JSON or XML with incredible speed.
It is licensed under Apache License 2.0.
How to Use
Generate JSON or XML Parser source code
- Build jaxy jar package like jaxy-xxx.jar from pom.xml and put jar into your classpath.
- Run sample code as follows.
- The parser for JSON service source code is automatically generated.
- Copy the parser code in the console and PASTE it into your IDE. (If you use Eclipse, just past source code text on the source folder like 'src/main/java' or 'src')
package org.example;
import org.riversun.jaxy.JaxyClient;
import org.riversun.jaxy.JaxyClientNetworkException;
import org.riversun.jaxy.JsonNode;
public class ParserGenSample {
public static void main(String[] args) throws JaxyClientNetworkException {
// Thank you, open weather map.
String url = "http://api.openweathermap.org/data/2.5/weather?lat=40.7&lon=-74.0&mode=json";
// Create the main class of jaxy
JaxyClient jaxy = new JaxyClient();
jaxy.setEndpointUrl(url);
// Retrieve JSON data from the server
JsonNode node = jaxy.getJson();
StringBuilder sb = new StringBuilder();
// generate parser source code into StringBuilder
// you can set the packageName of parser source code if you want.
jaxy.gen().setPackageName("com.example.sample").generateParserCodeTo(node, sb);
// Output parser source codes to the console
System.out.println(sb.toString());
}
}
Tips
In the sample of the above ,JAXY download JSON to access the Internet.(Yes,JAXY has REST client.) If you want to generate parser from JSON text, see followings.
StringBuilder sb = new StringBuilder();
JsonNode node = jaxy.getJson("[JSON_STRING]");
jaxy.gen().setPackageName("com.example.sample").generateParserCodeTo(node, sb);
How to handle JSON/XML
-
Here is auto generated parser source code from 'ParserGenSample' above.You can easily understand how it works. If you want to access the value of "coord"/"lon", write 'node.child("json_parent").child("coord").child("lon").toString();'
-
However, you do not need to write it manually yourself, it's jaxy's job.
-
target JSON
{"coord":{"lon":-74,"lat":40.7},"sys":{"message":0.0173,"country":"US","sunrise":1430215067,"sunset":1430264944},"weather":[{"id":801,"main":"Clouds","description":"few clouds","icon":"02n"}],"base":"stations","main":{"temp":282.992,"temp_min":282.992,"temp_max":282.992,"pressure":1016.68,"sea_level":1020.29,"grnd_level":1016.68,"humidity":67},"wind":{"speed":4.42,"deg":333.504},"clouds":{"all":20},"dt":1430203575,"id":5128581,"name":"New York","cod":200}
- auto generated source code (only shows main class)
package com.example.json_sample_01;
import org.riversun.jaxy.*;
public class AppMain_Json {
public static void main(String[] args) throws JaxyClientNetworkException {
JaxyClient jaxy = new JaxyClient();
jaxy.setEndpointUrl("http://api.openweathermap.org/data/2.5/weather?lat=40.7&lon=-74.0&mode=json");
jaxy.setHttpMethod("GET");
jaxy.setUseCDATA(true);
jaxy.setUseBasicAuth(false);
jaxy.setBasicAuthUserNameAndPassword(null, null);
JsonNode node = jaxy.getJson();
Json_parent json_parent = new Json_parent();
json_parent.dt = node.child("json_parent").child("dt").toString();
json_parent.coord = new Coord();
json_parent.coord.lon = node.child("json_parent").child("coord").child("lon").toString();
json_parent.coord.lat = node.child("json_parent").child("coord").child("lat").toString();
json_parent.weather = new Weather();
json_parent.weather.icon = node.child("json_parent").child("weather").child("icon").toString();
json_parent.weather.description = node.child("json_parent").child("weather").child("description").toString();
json_parent.weather.main = node.child("json_parent").child("weather").child("main").toString();
json_parent.weather.id = node.child("json_parent").child("weather").child("id").toString();
json_parent.name = node.child("json_parent").child("name").toString();
json_parent.cod = node.child("json_parent").child("cod").toString();
json_parent.main = new Main();
json_parent.main.temp = node.child("json_parent").child("main").child("temp").toString();
json_parent.main.temp_min = node.child("json_parent").child("main").child("temp_min").toString();
json_parent.main.grnd_level = node.child("json_parent").child("main").child("grnd_level").toString();
json_parent.main.humidity = node.child("json_parent").child("main").child("humidity").toString();
json_parent.main.pressure = node.child("json_parent").child("main").child("pressure").toString();
json_parent.main.sea_level = node.child("json_parent").child("main").child("sea_level").toString();
json_parent.main.temp_max = node.child("json_parent").child("main").child("temp_max").toString();
json_parent.clouds = new Clouds();
json_parent.clouds.all = node.child("json_parent").child("clouds").child("all").toString();
json_parent.id = node.child("json_parent").child("id").toString();
json_parent.sys = new Sys();
json_parent.sys.country = node.child("json_parent").child("sys").child("country").toString();
json_parent.sys.sunrise = node.child("json_parent").child("sys").child("sunrise").toString();
json_parent.sys.sunset = node.child("json_parent").child("sys").child("sunset").toString();
json_parent.sys.message = node.child("json_parent").child("sys").child("message").toString();
json_parent.base = node.child("json_parent").child("base").toString();
json_parent.wind = new Wind();
json_parent.wind.deg = node.child("json_parent").child("wind").child("deg").toString();
json_parent.wind.speed = node.child("json_parent").child("wind").child("speed").toString();
// TODO
// Write down your code here
System.out.println("json_parent=" + json_parent);
}// main()
}
More Details
See javadoc as follows.
https://riversun.github.io/javadoc/jaxy/
#Downloads
maven
- You can add dependencies to maven pom.xml file.
<dependency>
<groupId>org.riversun</groupId>
<artifactId>jaxy</artifactId>
<version>0.8.0</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20090211</version>
<scope>provided</scope>
</dependency>
project moved from bitbucket:)