对Json文件的解析(读取)

package com.testReadJson;

import java.io.FileNotFoundException;

import java.io.FileReader;

import com.google.gson.JsonArray;

import com.google.gson.JsonIOException;

import com.google.gson.JsonObject;

import com.google.gson.JsonParser;

import com.google.gson.JsonSyntaxException;

import com.google.gson.stream.JsonReader;

/**

 * @author Administrator

 * 读取JSon格式的文件内容

 *

 */

public class ReadJson {

public static void main(String[] args) {
try {
JsonParser parser = new JsonParser();
JsonObject object = (JsonObject) parser.parse(new FileReader("a.json"));
System.err.println("cat = " + object.get("cat").getAsString());

System.err.println("pop = " + object.get("pop").getAsBoolean());
System.err.println("pop = " + object.get("pop").getAsString());

JsonArray array = object.get("languages").getAsJsonArray();
for (int i = 0; i < array.size(); i++) {
System.err.println("----------------------");
JsonObject subObject = array.get(i).getAsJsonObject();
System.out.println("id = " + subObject.get("id").getAsInt());
System.out.println("ide = " + subObject.get("ide").getAsString());
System.out.println("name = " + subObject.get("name").getAsString());
}

} catch (JsonIOException e) {
e.printStackTrace();
} catch (JsonSyntaxException e) {
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}

}