java读取JSON文件并解析

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.codehaus.jettison.json.JSONObject;

import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;
import java.util.Map;

public class JsonTool {

    /**
     * 文件相对路径(文件内容在最下方)
     */
    private static String FILE_DIR = "项目名/src/main/resources/file.json";

    /**
     * 获取MOCK数据
     *
     * @since 2024/6/25
     */
    public static List getMockData(String dateType) {
        try {
            // 读取JSON文件内容
            String content = new String(Files.readAllBytes(Paths.get(FILE_DIR)));

            // 通过key获取value
            String jsonStr = new JSONObject(content).getJSONArray(dateType).toString();

            ObjectMapper objectMapper = new ObjectMapper();
            List<Map> list = objectMapper.readValue(jsonStr, new TypeReference<List<Map>>() {
            });
            return list;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) {
        JsonTool.getMockData("data1");
    }
}


/**
 * file.json文件内容
 *
 * {
 * "data1": [
 * {
 * "taskSheetNo": "TASK_SHEET_NO_001",
 * "status": 1,
 * "isAllComplete": false,
 * "createTime": "2024-06-01"
 * },
 * {
 * "taskSheetNo": "TASK_SHEET_NO_002",
 * "status": 1,
 * "isAllComplete": false,
 * "createTime": "2024-06-01"
 * }
 * ],
 * "data2": [
 * {
 * "taskSheetNo": "TASK_SHEET_NO_001",
 * "status": 1,
 * "isAllComplete": false,
 * "createTime": "2024-06-01"
 * },
 * {
 * "taskSheetNo": "TASK_SHEET_NO_002",
 * "status": 1,
 * "isAllComplete": false,
 * "createTime": "2024-06-01"
 * }
 * ]
 * }
 */