SpringBoot读取JSON文件

1.编写json数据文件

{
  "data": [
    {
      "xl": [
        {
          "value": "选项1",
          "label": "二学位毕业"
        },
        {
          "value": "选项2",
          "label": "二学位毕业"
        },
        {
          "value": "选项3",
          "label": "本科生毕业"
        },
        {
          "value": "选项4",
          "label": "本科生结业"
        }
      ]
    },
    {
      "zzmm": [
        {
          "value": "选项1",
          "label": "中共党员"
        },
        {
          "value": "选项2",
          "label": "中共预备党员"
        },
        {
          "value": "选项3",
          "label": "共青团员"
        },
        {
          "value": "选项4",
          "label": "群众"
        },
        {
          "value": "选项6",
          "label": "民革会员"
        },
        {
          "value": "选项7",
          "label": "民盟盟员"
        },
        {
          "value": "选项8",
          "label": "民键会员"
        },
        {
          "value": "选项9",
          "label": "民进会员"
        },
        {
          "value": "选项10",
          "label": "农工党党员"
        },
        {
          "value": "选项11",
          "label": "致公堂党员"
        },
        {
          "value": "选项12",
          "label": "九三学社社员"
        },
        {
          "value": "选项13",
          "label": "台盟盟员"
        },
        {
          "value": "选项14",
          "label": "无党派民主人士"
        }
      ]
    }
  ]
}

2.引入依赖

引入相关依赖 借助 fastjson 依赖

<dependency>
    <groupId>com.alibabagroupId>
    <artifactId>fastjsonartifactId>
    <version>1.2.48version>
dependency>

3.具体实现

编写工具类 JsonUtil.java

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.Reader;

public class JsonUtil {

    /**
     * 读取JSON文件转换为字符串
     * @param filePath
     * @return
     */
    public static String readJsonFile(String filePath) {
        String jsonStr = "";
        try {
            File jsonFile = new File(filePath);
            Reader reader = new InputStreamReader(new FileInputStream(jsonFile), "utf-8");
            int ch = 0;
            StringBuffer sb = new StringBuffer();
            while ((ch = reader.read()) != -1) {
                sb.append((char) ch);
            }
            reader.close();
            jsonStr = sb.toString();
            return jsonStr;
        } catch (Exception ex) {
            ex.printStackTrace();
            return null;
        }
    }
}

4.读取转换

对象形式读取转换

//    获取json数据文件
    @RequestMapping("/get/json")
    @ResponseBody
    public Object json(){
        String jsonStr = JsonUtil.readJsonFile("src/main/resources/static/json/package.json");
        JSONObject result = JSONObject.parseObject(jsonStr);
        return result;
    }

5.数据获取测试

采用 apipost 进行数据数据测试

vue.js采用 axios 获取

            //获取json文件数据
            getJson(){
                axios.get("/get/json").then(res =>{
                    json = res.data.data
                    console.log(json)
                })
            },