在不确定的情况循环嵌套的JSON怎么解析？

结构大概是这样的
下面是模拟数据 要用"chian" 字段写一个
{
"datas" : [ {
"payAmount" : 0,
"area" : "滁州市",
"userId" : "3638b61f7ef74d95ad6c14d8bc0644ff",
"chainCount" : 3,
"seq" : 1,
"userName" : "还是收到",
"receiveAmount" : 7.00,
"chian" : [ {
"amount" : 7.00,
"node" : 1,
"area" : "",
"debtorName" : "还是",
"accountId" : "AC20180810000616",
"debtorId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"creditorId" : "3638b61f7ef74d95ad6c14d8bc0644ff",
"children" : [ {
"amount" : 6.00,
"node" : 2,
"area" : "",
"debtorName" : "士大夫",
"accountId" : "AC20180907000652",
"debtorId" : "265581f4b83540a09cd8fba8797e7065",
"creditorId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"children" : [ ],
"creditorName" : "还是"
}, {
"amount" : 2.00,
"node" : 2,
"area" : "",
"debtorName" : "海阔天空",
"accountId" : "AC20180912000657",
"debtorId" : "a41dac80eaf940d58bcda3fe42faaaa3",
"creditorId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"children" : [ {
"amount" : 4.00,
"node" : 3,
"area" : "",
"debtorName" : "士大夫",
"accountId" : "AC20180907000651",
"debtorId" : "265581f4b83540a09cd8fba8797e7065",
"creditorId" : "a41dac80eaf940d58bcda3fe42faaaa3",
"children" : [ ],
"creditorName" : "海阔天空"
} ],
"creditorName" : "还是"
}, {
"amount" : 90000000.00,
"node" : 2,
"area" : "",
"debtorName" : "士大夫",
"accountId" : "AC20180824000639",
"debtorId" : "265581f4b83540a09cd8fba8797e7065",
"creditorId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"children" : [ ],
"creditorName" : "还是"
} ],
"creditorName" : "还是收到"
} ],
"rongziAll" : 90000008.00
}, {
"financeAmount" : 0,
"payAmount" : 0,
"area" : "抚顺市",
"userId" : "3a33493363594bdfaa304586ab62668c",
"chainCount" : 0,
"seq" : 2,
"userName" : "A",
"receiveAmount" : 0,
"chian" : "",
"rongziAll" : 0
}, {
"payAmount" : 0,
"area" : "佳木斯市",
"userId" : "c92fce2d51154fc597421c0c2d4f9171",
"chainCount" : 1,
"seq" : 3,
"userName" : "阿甘船运有限公司",
"receiveAmount" : 1500000.00,
"chian" : [ {
"amount" : 1500000.00,
"node" : 1,
"area" : "",
"debtorName" : "澳洲太和矿业有限公司",
"accountId" : "AC20180412000452",
"debtorId" : "1acc2644a97541e5a9291120e379f416",
"creditorId" : "c92fce2d51154fc597421c0c2d4f9171",
"children" : [ ],
"creditorName" : "阿甘船运有限公司"
} ],
"rongziAll" : 1500000.00
}, {
"financeAmount" : 0,
"payAmount" : 0,
"area" : "南昌市",
"userId" : "1260d446161c4d7c8220e5addccc30ed",
"chainCount" : 0,
"seq" : 4,
"userName" : "个人附件阿萨德",
"receiveAmount" : 0,
"chian" : "",
"rongziAll" : 0
}, {
"financeAmount" : 0,
"payAmount" : 0,
"area" : "伊犁哈萨克自治州",
"userId" : "3fdc805022814024872428a5cefc9793",
"chainCount" : 0,
"seq" : 5,
"userName" : "贺声耀",
"receiveAmount" : 0,
"chian" : "",
"rongziAll" : 0
}, {
"payAmount" : 7.00,
"area" : "滁州市",
"userId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"chainCount" : 3,
"seq" : 6,
"userName" : "还是",
"receiveAmount" : 90000008.00,
"chian" : [ {
"amount" : 6.00,
"node" : 1,
"area" : "",
"debtorName" : "士大夫",
"accountId" : "AC20180907000652",
"debtorId" : "265581f4b83540a09cd8fba8797e7065",
"creditorId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"children" : [ ],
"creditorName" : "还是"
}, {
"amount" : 2.00,
"node" : 1,
"area" : "",
"debtorName" : "海阔天空",
"accountId" : "AC20180912000657",
"debtorId" : "a41dac80eaf940d58bcda3fe42faaaa3",
"creditorId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"children" : [ {
"amount" : 4.00,
"node" : 2,
"area" : "",
"debtorName" : "士大夫",
"accountId" : "AC20180907000651",
"debtorId" : "265581f4b83540a09cd8fba8797e7065",
"creditorId" : "a41dac80eaf940d58bcda3fe42faaaa3",
"children" : [ ],
"creditorName" : "海阔天空"
} ],
"creditorName" : "还是"
}, {
"amount" : 90000000.00,
"node" : 1,
"area" : "",
"debtorName" : "士大夫",
"accountId" : "AC20180824000639",
"debtorId" : "265581f4b83540a09cd8fba8797e7065",
"creditorId" : "43ded7a2d9b647d3bd1d8a5f7125dab4",
"children" : [ ],
"creditorName" : "还是"
} ],
"rongziAll" : 90000008.00
}, {
"financeAmount" : 0,
"payAmount" : 1500000.00,
"area" : "长春市",
"userId" : "1acc2644a97541e5a9291120e379f416",
"chainCount" : 0,
"seq" : 7,
"userName" : "澳洲太和矿业有限公司",
"receiveAmount" : 0,
"chian" : "",
"rongziAll" : 0
}, {
"financeAmount" : 0,
"payAmount" : 0,
"area" : "怀化市",
"userId" : "7869179be7b74951994de20448970fe3",
"chainCount" : 0,
"seq" : 8,
"userName" : "Shhshs",
"receiveAmount" : 0,
"chian" : "",
"rongziAll" : 0
}, {
"payAmount" : 2.00,
"area" : "贵阳市",
"userId" : "a41dac80eaf940d58bcda3fe42faaaa3",
"chainCount" : 1,
"seq" : 9,
"userName" : "海阔天空",
"receiveAmount" : 4.00,
"chian" : [ {
"amount" : 4.00,
"node" : 1,
"area" : "",
"debtorName" : "士大夫",
"accountId" : "AC20180907000651",
"debtorId" : "265581f4b83540a09cd8fba8797e7065",
"creditorId" : "a41dac80eaf940d58bcda3fe42faaaa3",
"children" : [ ],
"creditorName" : "海阔天空"
} ],
"rongziAll" : 4.00
}, {
"financeAmount" : 0,
"payAmount" : 90000010.00,
"area" : "澳门",
"userId" : "265581f4b83540a09cd8fba8797e7065",
"chainCount" : 0,
"seq" : 10,
"userName" : "士大夫",
"receiveAmount" : 0,
"chian" : "",
"rongziAll" : 0
} ],
"result" : "success",
"count" : 10,
"page" : "1",
"msg" : "0"
}

可以用递归，也可以不用。递归简单，就不说了。
不用递归伪代码如下：

当前层次 = 1;
do
{
n = 遍历层次为1的，添加到列表，返回数量
当前层次++;
} while (n > 0);

像这种情况，一个bean是解决不了的children 是个循环体，不确定是否存在，所以用的时候判断一下是否是null，不为null再判断下层如此就ok了

手动解析，只要是解析数组之前先判断size是不是为0就可以了，用手动解析应该是比较快的方法

我真是闲的无聊

代码

package com.vzoom.ath.wsc.json;

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.List;

import com.alibaba.fastjson.JSON;

public class Main {

    public static void main(String[] args) throws Exception {
        String filePath = "F://my-json.txt";
        BufferedReader reader = new BufferedReader(new FileReader(filePath));
        String temp = null;
        StringBuffer sbuffer = new StringBuffer();
        while ((temp = reader.readLine()) != null) {
            sbuffer.append(temp);
        }

        String jsonContent = sbuffer.toString();
        System.out.println(jsonContent);
        MyJson myJson = JSON.parseObject(jsonContent, MyJson.class);
        System.out.println(JSON.toJSONString(myJson));
        reader.close();
    }
}

class Children {

    private double amount;
    private int node;
    private String area;
    private String debtorName;
    private String accountId;
    private String debtorId;
    private String creditorId;
    private String creditorName;
    private List<Children> children;

    public double getAmount() {
        return amount;
    }

    public void setAmount(double amount) {
        this.amount = amount;
    }

    public int getNode() {
        return node;
    }

    public void setNode(int node) {
        this.node = node;
    }

    public String getArea() {
        return area;
    }

    public void setArea(String area) {
        this.area = area;
    }

    public String getDebtorName() {
        return debtorName;
    }

    public void setDebtorName(String debtorName) {
        this.debtorName = debtorName;
    }

    public String getAccountId() {
        return accountId;
    }

    public void setAccountId(String accountId) {
        this.accountId = accountId;
    }

    public String getDebtorId() {
        return debtorId;
    }

    public void setDebtorId(String debtorId) {
        this.debtorId = debtorId;
    }

    public String getCreditorId() {
        return creditorId;
    }

    public void setCreditorId(String creditorId) {
        this.creditorId = creditorId;
    }

    public String getCreditorName() {
        return creditorName;
    }

    public void setCreditorName(String creditorName) {
        this.creditorName = creditorName;
    }

    public List<Children> getChildren() {
        return children;
    }

    public void setChildren(List<Children> children) {
        this.children = children;
    }
}

class Chian {

    private double amount;
    private int node;
    private String area;
    private String debtorName;
    private String accountId;
    private String debtorId;
    private String creditorId;
    private List<Children> children;
    private String creditorName;

    public double getAmount() {
        return amount;
    }

    public void setAmount(double amount) {
        this.amount = amount;
    }

    public int getNode() {
        return node;
    }

    public void setNode(int node) {
        this.node = node;
    }

    public String getArea() {
        return area;
    }

    public void setArea(String area) {
        this.area = area;
    }

    public String getDebtorName() {
        return debtorName;
    }

    public void setDebtorName(String debtorName) {
        this.debtorName = debtorName;
    }

    public String getAccountId() {
        return accountId;
    }

    public void setAccountId(String accountId) {
        this.accountId = accountId;
    }

    public String getDebtorId() {
        return debtorId;
    }

    public void setDebtorId(String debtorId) {
        this.debtorId = debtorId;
    }

    public String getCreditorId() {
        return creditorId;
    }

    public void setCreditorId(String creditorId) {
        this.creditorId = creditorId;
    }

    public List<Children> getChildren() {
        return children;
    }

    public void setChildren(List<Children> children) {
        this.children = children;
    }

    public String getCreditorName() {
        return creditorName;
    }

    public void setCreditorName(String creditorName) {
        this.creditorName = creditorName;
    }
}

class Data {

    private String financeAmount;
    private double payAmount;
    private String area;
    private String userId;
    private int chainCount;
    private int seq;
    private String userName;
    private double receiveAmount;
    private List<Chian> chian;
    private double rongziAll;

    public String getFinanceAmount() {
        return financeAmount;
    }

    public void setFinanceAmount(String financeAmount) {
        this.financeAmount = financeAmount;
    }

    public double getPayAmount() {
        return payAmount;
    }

    public void setPayAmount(double payAmount) {
        this.payAmount = payAmount;
    }

    public String getArea() {
        return area;
    }

    public void setArea(String area) {
        this.area = area;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public int getChainCount() {
        return chainCount;
    }

    public void setChainCount(int chainCount) {
        this.chainCount = chainCount;
    }

    public int getSeq() {
        return seq;
    }

    public void setSeq(int seq) {
        this.seq = seq;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public double getReceiveAmount() {
        return receiveAmount;
    }

    public void setReceiveAmount(double receiveAmount) {
        this.receiveAmount = receiveAmount;
    }

    public List<Chian> getChian() {
        return chian;
    }

    public void setChian(List<Chian> chian) {
        this.chian = chian;
    }

    public double getRongziAll() {
        return rongziAll;
    }

    public void setRongziAll(double rongziAll) {
        this.rongziAll = rongziAll;
    }
}

class MyJson {

    private List<Data> datas;
    private String result;
    private int count;
    private String page;
    private String msg;

    public List<Data> getDatas() {
        return datas;
    }

    public void setDatas(List<Data> datas) {
        this.datas = datas;
    }

    public String getResult() {
        return result;
    }

    public void setResult(String result) {
        this.result = result;
    }

    public int getCount() {
        return count;
    }

    public void setCount(int count) {
        this.count = count;
    }

    public String getPage() {
        return page;
    }

    public void setPage(String page) {
        this.page = page;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }
}

只引用了fastjson

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.49</version>
 </dependency>

直接使用Android studio的GsonFormat可以自动生成
public class demo {

/**
 * datas : [{"payAmount":0,"area":"滁州市","userId":"3638b61f7ef74d95ad6c14d8bc0644ff","chainCount":3,"seq":1,"userName":"还是收到","receiveAmount":7,"chian":[{"amount":7,"node":1,"area":"","debtorName":"还是","accountId":"AC20180810000616","debtorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","creditorId":"3638b61f7ef74d95ad6c14d8bc0644ff","children":[{"amount":6,"node":2,"area":"","debtorName":"士大夫","accountId":"AC20180907000652","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"},{"amount":2,"node":2,"area":"","debtorName":"海阔天空","accountId":"AC20180912000657","debtorId":"a41dac80eaf940d58bcda3fe42faaaa3","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[{"amount":4,"node":3,"area":"","debtorName":"士大夫","accountId":"AC20180907000651","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"a41dac80eaf940d58bcda3fe42faaaa3","children":[],"creditorName":"海阔天空"}],"creditorName":"还是"},{"amount":9.0E7,"node":2,"area":"","debtorName":"士大夫","accountId":"AC20180824000639","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"}],"creditorName":"还是收到"}],"rongziAll":9.0000008E7},{"financeAmount":0,"payAmount":0,"area":"抚顺市","userId":"3a33493363594bdfaa304586ab62668c","chainCount":0,"seq":2,"userName":"A","receiveAmount":0,"chian":"","rongziAll":0},{"payAmount":0,"area":"佳木斯市","userId":"c92fce2d51154fc597421c0c2d4f9171","chainCount":1,"seq":3,"userName":"阿甘船运有限公司","receiveAmount":1500000,"chian":[{"amount":1500000,"node":1,"area":"","debtorName":"澳洲太和矿业有限公司","accountId":"AC20180412000452","debtorId":"1acc2644a97541e5a9291120e379f416","creditorId":"c92fce2d51154fc597421c0c2d4f9171","children":[],"creditorName":"阿甘船运有限公司"}],"rongziAll":1500000},{"financeAmount":0,"payAmount":0,"area":"南昌市","userId":"1260d446161c4d7c8220e5addccc30ed","chainCount":0,"seq":4,"userName":"个人附件阿萨德","receiveAmount":0,"chian":"","rongziAll":0},{"financeAmount":0,"payAmount":0,"area":"伊犁哈萨克自治州","userId":"3fdc805022814024872428a5cefc9793","chainCount":0,"seq":5,"userName":"贺声耀","receiveAmount":0,"chian":"","rongziAll":0},{"payAmount":7,"area":"滁州市","userId":"43ded7a2d9b647d3bd1d8a5f7125dab4","chainCount":3,"seq":6,"userName":"还是","receiveAmount":9.0000008E7,"chian":[{"amount":6,"node":1,"area":"","debtorName":"士大夫","accountId":"AC20180907000652","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"},{"amount":2,"node":1,"area":"","debtorName":"海阔天空","accountId":"AC20180912000657","debtorId":"a41dac80eaf940d58bcda3fe42faaaa3","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[{"amount":4,"node":2,"area":"","debtorName":"士大夫","accountId":"AC20180907000651","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"a41dac80eaf940d58bcda3fe42faaaa3","children":[],"creditorName":"海阔天空"}],"creditorName":"还是"},{"amount":9.0E7,"node":1,"area":"","debtorName":"士大夫","accountId":"AC20180824000639","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"}],"rongziAll":9.0000008E7},{"financeAmount":0,"payAmount":1500000,"area":"长春市","userId":"1acc2644a97541e5a9291120e379f416","chainCount":0,"seq":7,"userName":"澳洲太和矿业有限公司","receiveAmount":0,"chian":"","rongziAll":0},{"financeAmount":0,"payAmount":0,"area":"怀化市","userId":"7869179be7b74951994de20448970fe3","chainCount":0,"seq":8,"userName":"Shhshs","receiveAmount":0,"chian":"","rongziAll":0},{"payAmount":2,"area":"贵阳市","userId":"a41dac80eaf940d58bcda3fe42faaaa3","chainCount":1,"seq":9,"userName":"海阔天空","receiveAmount":4,"chian":[{"amount":4,"node":1,"area":"","debtorName":"士大夫","accountId":"AC20180907000651","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"a41dac80eaf940d58bcda3fe42faaaa3","children":[],"creditorName":"海阔天空"}],"rongziAll":4},{"financeAmount":0,"payAmount":9.000001E7,"area":"澳门","userId":"265581f4b83540a09cd8fba8797e7065","chainCount":0,"seq":10,"userName":"士大夫","receiveAmount":0,"chian":"","rongziAll":0}]
 * result : success
 * count : 10
 * page : 1
 * msg : 0
 */

private String result;
private int count;
private String page;
private String msg;
private List<DatasBean> datas;

public String getResult() {
    return result;
}

public void setResult(String result) {
    this.result = result;
}

public int getCount() {
    return count;
}

public void setCount(int count) {
    this.count = count;
}

public String getPage() {
    return page;
}

public void setPage(String page) {
    this.page = page;
}

public String getMsg() {
    return msg;
}

public void setMsg(String msg) {
    this.msg = msg;
}

public List<DatasBean> getDatas() {
    return datas;
}

public void setDatas(List<DatasBean> datas) {
    this.datas = datas;
}

public static class DatasBean {
    /**
     * payAmount : 0
     * area : 滁州市
     * userId : 3638b61f7ef74d95ad6c14d8bc0644ff
     * chainCount : 3
     * seq : 1
     * userName : 还是收到
     * receiveAmount : 7.0
     * chian : [{"amount":7,"node":1,"area":"","debtorName":"还是","accountId":"AC20180810000616","debtorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","creditorId":"3638b61f7ef74d95ad6c14d8bc0644ff","children":[{"amount":6,"node":2,"area":"","debtorName":"士大夫","accountId":"AC20180907000652","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"},{"amount":2,"node":2,"area":"","debtorName":"海阔天空","accountId":"AC20180912000657","debtorId":"a41dac80eaf940d58bcda3fe42faaaa3","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[{"amount":4,"node":3,"area":"","debtorName":"士大夫","accountId":"AC20180907000651","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"a41dac80eaf940d58bcda3fe42faaaa3","children":[],"creditorName":"海阔天空"}],"creditorName":"还是"},{"amount":9.0E7,"node":2,"area":"","debtorName":"士大夫","accountId":"AC20180824000639","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"}],"creditorName":"还是收到"}]
     * rongziAll : 9.0000008E7
     * financeAmount : 0
     */

    private int payAmount;
    private String area;
    private String userId;
    private int chainCount;
    private int seq;
    private String userName;
    private double receiveAmount;
    private double rongziAll;
    private int financeAmount;
    private List<ChianBean> chian;

    public int getPayAmount() {
        return payAmount;
    }

    public void setPayAmount(int payAmount) {
        this.payAmount = payAmount;
    }

    public String getArea() {
        return area;
    }

    public void setArea(String area) {
        this.area = area;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public int getChainCount() {
        return chainCount;
    }

    public void setChainCount(int chainCount) {
        this.chainCount = chainCount;
    }

    public int getSeq() {
        return seq;
    }

    public void setSeq(int seq) {
        this.seq = seq;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public double getReceiveAmount() {
        return receiveAmount;
    }

    public void setReceiveAmount(double receiveAmount) {
        this.receiveAmount = receiveAmount;
    }

    public double getRongziAll() {
        return rongziAll;
    }

    public void setRongziAll(double rongziAll) {
        this.rongziAll = rongziAll;
    }

    public int getFinanceAmount() {
        return financeAmount;
    }

    public void setFinanceAmount(int financeAmount) {
        this.financeAmount = financeAmount;
    }

    public List<ChianBean> getChian() {
        return chian;
    }

    public void setChian(List<ChianBean> chian) {
        this.chian = chian;
    }

    public static class ChianBean {
        /**
         * amount : 7.0
         * node : 1
         * area : 
         * debtorName : 还是
         * accountId : AC20180810000616
         * debtorId : 43ded7a2d9b647d3bd1d8a5f7125dab4
         * creditorId : 3638b61f7ef74d95ad6c14d8bc0644ff
         * children : [{"amount":6,"node":2,"area":"","debtorName":"士大夫","accountId":"AC20180907000652","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"},{"amount":2,"node":2,"area":"","debtorName":"海阔天空","accountId":"AC20180912000657","debtorId":"a41dac80eaf940d58bcda3fe42faaaa3","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[{"amount":4,"node":3,"area":"","debtorName":"士大夫","accountId":"AC20180907000651","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"a41dac80eaf940d58bcda3fe42faaaa3","children":[],"creditorName":"海阔天空"}],"creditorName":"还是"},{"amount":9.0E7,"node":2,"area":"","debtorName":"士大夫","accountId":"AC20180824000639","debtorId":"265581f4b83540a09cd8fba8797e7065","creditorId":"43ded7a2d9b647d3bd1d8a5f7125dab4","children":[],"creditorName":"还是"}]
         * creditorName : 还是收到
         */

        private double amount;
        private int node;
        private String area;
        private String debtorName;
        private String accountId;
        private String debtorId;
        private String creditorId;
        private String creditorName;
        private List<ChildrenBean> children;

        public double getAmount() {
            return amount;
        }

        public void setAmount(double amount) {
            this.amount = amount;
        }

        public int getNode() {
            return node;
        }

        public void setNode(int node) {
            this.node = node;
        }

        public String getArea() {
            return area;
        }

        public void setArea(String area) {
            this.area = area;
        }

        public String getDebtorName() {
            return debtorName;
        }

        public void setDebtorName(String debtorName) {
            this.debtorName = debtorName;
        }

        public String getAccountId() {
            return accountId;
        }

        public void setAccountId(String accountId) {
            this.accountId = accountId;
        }

        public String getDebtorId() {
            return debtorId;
        }

        public void setDebtorId(String debtorId) {
            this.debtorId = debtorId;
        }

        public String getCreditorId() {
            return creditorId;
        }

        public void setCreditorId(String creditorId) {
            this.creditorId = creditorId;
        }

        public String getCreditorName() {
            return creditorName;
        }

        public void setCreditorName(String creditorName) {
            this.creditorName = creditorName;
        }

        public List<ChildrenBean> getChildren() {
            return children;
        }

        public void setChildren(List<ChildrenBean> children) {
            this.children = children;
        }

        public static class ChildrenBean {
            /**
             * amount : 6.0
             * node : 2
             * area : 
             * debtorName : 士大夫
             * accountId : AC20180907000652
             * debtorId : 265581f4b83540a09cd8fba8797e7065
             * creditorId : 43ded7a2d9b647d3bd1d8a5f7125dab4
             * children : []
             * creditorName : 还是
             */

            private double amount;
            private int node;
            private String area;
            private String debtorName;
            private String accountId;
            private String debtorId;
            private String creditorId;
            private String creditorName;
            private List<?> children;

            public double getAmount() {
                return amount;
            }

            public void setAmount(double amount) {
                this.amount = amount;
            }

            public int getNode() {
                return node;
            }

            public void setNode(int node) {
                this.node = node;
            }

            public String getArea() {
                return area;
            }

            public void setArea(String area) {
                this.area = area;
            }

            public String getDebtorName() {
                return debtorName;
            }

            public void setDebtorName(String debtorName) {
                this.debtorName = debtorName;
            }

            public String getAccountId() {
                return accountId;
            }

            public void setAccountId(String accountId) {
                this.accountId = accountId;
            }

            public String getDebtorId() {
                return debtorId;
            }

            public void setDebtorId(String debtorId) {
                this.debtorId = debtorId;
            }

            public String getCreditorId() {
                return creditorId;
            }

            public void setCreditorId(String creditorId) {
                this.creditorId = creditorId;
            }

            public String getCreditorName() {
                return creditorName;
            }

            public void setCreditorName(String creditorName) {
                this.creditorName = creditorName;
            }

            public List<?> getChildren() {
                return children;
            }

            public void setChildren(List<?> children) {
                this.children = children;
            }
        }
    }
}

}

嵌套for循环手动JSON来解析就行.类似递归

因为数据不确定，同一个字段对应的可能是JSONObject也可能是JSONArray，所以不好写java bean。只能手动递归解析，判断是object还是array循环解析