将json文件转换成insert语句的sql文件

引入是要的maven依赖:

1 <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
2 <dependency>
3     <groupId>com.google.code.gson</groupId>
4     <artifactId>gson</artifactId>
5     <version>2.2.4</version>
6 </dependency>

转换:

 1 package com.iot.zjdy.exampl.test;
 2 
 3 import com.google.gson.JsonArray;
 4 import com.google.gson.JsonElement;
 5 import com.google.gson.JsonObject;
 6 import com.google.gson.JsonParser;
 7 import java.io.BufferedWriter;
 8 import java.io.File;
 9 import java.io.FileReader;
10 import java.io.FileWriter;
11 
12 
13 /**
14  * Created by Yanwu 2018/2/8.
15  */
16 public class JsonToSqlTest {
17     private static final String PATH = "C:\demo\file\Cab_LN_FeaturesToJSON.json";
18 
19     public static void main(String[] args) throws Exception {
20         System.out.println("========== JSON ---> 转换成 SQL 开始 ==========");
21         jsonToExcel();
22         System.out.println("========== JSON ---> 转换成 SQL 结束 ==========");
23 }
24 
25     private static void jsonToExcel() throws Exception {
26         JsonParser jsonParser = new JsonParser();
27         JsonObject jsonObject = (JsonObject) jsonParser.parse(new FileReader(PATH));
28         JsonElement features = jsonObject.get("features");
29         JsonArray asJsonArray = features.getAsJsonArray();
30         for (int i = 0; i < asJsonArray.size(); i++) {
31             JsonElement jsonElement = asJsonArray.get(i);
32             JsonObject featuresObj = jsonElement.getAsJsonObject();
33             JsonElement attributes = featuresObj.get("attributes");
34             JsonObject attributesObj = attributes.getAsJsonObject();
35             JsonElement swchName = attributesObj.get("swchName");
36             String nameStr = swchName.toString();
37             JsonElement geometry = featuresObj.get("geometry");
38             JsonObject geometryObj = geometry.getAsJsonObject();
39             JsonElement path = geometryObj.get("paths");
40             String pathStr = path.toString();
41             String replace = nameStr.replace(""", "");
42             String sqlStr = "insert into poly_line (id, box_name, paths) values (" + i + ", '" + replace + "', '" + pathStr + "'); 
";
43             System.out.println(sqlStr);
44             File file = new File("C:\demo\file\Cab_LN.sql");
45             if (!file.exists()) {
46                 file.createNewFile();
47             }
48             FileWriter fileWriter = new FileWriter(file, true);
49             BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
50             bufferedWriter.write(sqlStr);
51             bufferedWriter.close();
52         }
53     }
54 }