解析json实例

解析项目目录中的一个json文件，将之转化为List的一个方法。

package com.miracles.p3.os.util;import com.miracles.p3.os.mode.VideoBean;
import org.json.JSONArray;
import org.json.JSONObject;import java.util.ArrayList;
import java.util.List;/*** Created by SevilinMa on 2016/3/17.*/
public class ConfigHelper {private static ConfigHelper configHelper;public final String LIB_FILE = "./lib.json";public final String CONFIG_FILE = "./config.json";private ConfigHelper(){}public static ConfigHelper contextConfigHelper(){if(configHelper == null){configHelper = new ConfigHelper();}return configHelper;}public List<VideoBean> getHelperVideoList(){List<VideoBean> liblist = new ArrayList<>();String jsontext = FileUtil.readFile(LIB_FILE);try {JSONObject jsonObject = new JSONObject(jsontext);JSONArray libs = jsonObject.getJSONArray("helplib");JSONObject item;VideoBean bean;for(int i=0;i<libs.length();i++){item = libs.getJSONObject(i);bean = new VideoBean();bean.setTitle(item.getString("title"));bean.setVideoPath(item.getString("path"));liblist.add(bean);}}catch (Exception e){e.printStackTrace();liblist.clear();}return liblist;}}

package com.miracles.p3.os.util;import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.stream.Stream;/*** Created by SevilinMa on 2016/3/17.* 文件Util类，用于文件处理相关操作*/
public class FileUtil {/*** 读取文件所有数据* @param path 文件路径* @return 返回String*/public static String readFile(String path){StringBuilder sb = new StringBuilder();try(Stream<String> stream = Files.lines(Paths.get(path))){stream.forEachOrdered(sb::append);}catch (Exception e){e.printStackTrace();}return sb.toString();}
}