首先导入核心包fastJson和commons-io包
<!-- fastJson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.47</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-io/commons-io --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency>
我的json数据是放在resources下
核心代码
package com.shengxun.service.impl; import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject; import com.shengxun.domian.CmpNo; import org.apache.commons.io.FileUtils; import org.springframework.util.ResourceUtils; import java.io.IOException; import java.nio.charset.Charset; import java.util.ArrayList; import java.util.List; public class JsonData { public static List<CmpNo> jsonDataString(){ List<CmpNo> cmpNos = new ArrayList<CmpNo>(); try { String jsonData = FileUtils.readFileToString(ResourceUtils. getFile("classpath:cmp2.json"), Charset.forName("UTF-8")); JSONObject jsonObject = JSONObject.parseObject(jsonData); JSONArray jsonArray = jsonObject.getJSONArray("rows"); for (int i = 0; i < jsonArray.size(); i++) { CmpNo cmpNo = new CmpNo(); JSONArray jsonArray1 = jsonArray.getJSONArray(i); cmpNo.setId(jsonArray1.getInteger(0)); cmpNo.setName(jsonArray1.getString(1)); cmpNo.setType(jsonArray1.getString(2)); cmpNo.setItype(jsonArray1.getInteger(3)); cmpNos.add(cmpNo); } } catch (IOException e) { e.printStackTrace(); } return cmpNos; } public static void main(String[] args){ System.out.println(jsonDataString().size()); } }
文章来源: springBoot解析json格式的数据