json java 数组 java json数组转对象

1.导入依赖

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public static <T> List<T> toBean(Object object, Class<T> cls) {

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        //list初始化

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        List<T> list = new ArrayList<>();

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        try {

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            //多个json串用JSONArray存

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            JSONArray jsonArray = JSONArray.fromObject(object);

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            for (Object qin : jsonArray

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            ) {

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                JSONObject jsonObject = JSONObject.fromObject(qin);

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                T teacher = (T) JSONObject.toBean(jsonObject, cls);

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                list.add(teacher);

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            }

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        } catch (Exception e) {

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            log.warn("JSON conversion failed");

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        }

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        return list;

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    }

3.调用方法（Teacher是个Bean类）

@Test
    public void test581() {
        //这是一个json串
        String str1 = "{\"address\":\"北京市大兴区\",\"age\":\"26\",\"name\":\"李老师\"}";
        String str2 = "[{\"address\":\"北京市\",\"age\":\"26\",\"name\":\"李老师\"}, {\"address\":\"上海市\",\"age\":\"29\",\"name\":\"王老师\"}, {" +
                "\"address\":\"上海市\",\"age\":\"30\",\"name\":\"王老师\"}, {\"address\":\"上海市\",\"age\":\"31\",\"name\":\"王老师\"}, {\"address\"" +
                ":\"上海市\",\"age\":\"32\",\"name\":\"王老师\"}, {\"address\":\"上海市\",\"age\":\"33\",\"name\":\"王老师\"}, {\"address\":\"上海市\"," +
                "\"age\":\"34\",\"name\":\"王老师\"}, {\"address\":\"上海市\",\"age\":\"35\",\"name\":\"王老师\"}, {\"address\":\"上海市\",\"" +
                "age\":\"36\",\"name\":\"王老师\"}, {\"address\":\"上海市\",\"age\":\"37\",\"name\":\"王老师\"}]";

        System.out.println(toBean(str2,Teacher.class));
    }

4.

5.可能用的包

import lombok.extern.slf4j.Slf4j;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.junit.jupiter.api.Test;
import org.springframework.stereotype.Component;
import osp.test.testdemo.pojo.Teacher;
import osp.test.testdemo.service.JsonUtil;
import java.text.ParseException;
import java.util.*;

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