json 文件打讀取

1。獲取文件路徑

/** BookController.class.getClassLoader().getResource("static/json/book_nav.json").getPath() 獲取當期運行時的項目json文件路徑*/JSONObject json = JsonResourceUtils.getJsonObjFromResource(BookController.class.getClassLoader().getResource("static/json/book_nav.json").getPath());Set<Entry<String, Object>> entrySets=json.entrySet();/** 取出json數據*/for(Entry<String, Object> entrySet: entrySets){if(entrySet.getKey().equals("bookNavs"))model.addAttribute("bookNavs",entrySet.getValue());}

2.讀取json文件

package com.feilong.reptile.util;import java.io.File;
import java.io.IOException;import org.apache.commons.io.FileUtils;
import org.apache.log4j.Logger;import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;public class JsonResourceUtils{private static Logger logger = Logger.getLogger(JsonResourceUtils.class);/** filePath文件路徑* @param filePath*/public static JSONObject getJsonObjFromResource(String filePath){JSONObject json = null;if (!filePath.contains(".json")) {filePath += ".json";}File file = new File(filePath);if (file.exists()) {String content=null;try {content = FileUtils.readFileToString(file, "UTF-8");} catch (IOException e) {    e.printStackTrace();logger.info("readFileToString: " + e.getMessage());}json = JSON.parseObject(content);} else {logger.info("file not exist!");}return json;}}

?3.pom 依賴

<dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.58</version></dependency><!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version>
</dependency>

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