Java--Json解析

普通Json

{"code":"S0000", "describe":"数据正常返回", "result":"OK"}

package gsondemo;

import java.io.Serializable;
import java.util.List;

@SuppressWarnings("serial")
public class Common implements Serializable {

    private String code;
    private String describe;
    private String result;

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getDescribe() {
        return describe;
    }

    public void setDescribe(String describe) {
        this.describe = describe;
    }

    public String getResult() {
        return result;
    }

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

    @Override
    public String toString() {
        return "Common [code=" + code + ", describe=" + describe + ", result=" + result + "]";
    }

}

package gsondemo;

import com.google.gson.Gson;

public class CommonAna {
    
    public static void main(String[] args) {
        String json = "{"code":"S0000", "describe":"数据正常返回", "result":"OK"}";
        Gson gson = new Gson();
        Common common = gson.fromJson(json, Common.class);
        System.out.println(common);
    }

}

嵌套json对象

{"code":"S0000",
"describe":"数据正常返回",
"result":{"accountBlank":"xxxxxx",
    "bankAccount":"xxxxxx",
    "code":"xxx",
    "id":"xxxxxxx",
    "kpAddr":"xxxxxx",
    "kpCode":"xxxxx",
    "kpName":"xxxxx",
    "kpTel":"xxx"}}

package gsondemo;

import java.io.Serializable;

@SuppressWarnings("serial")
public class Sub implements Serializable {

    private String accountBlank;
    private String bankAccount;
    private String code;
    private String id;
    private String kpAddr;
    private String kpCode;
    private String kpName;
    private String kpTel;

    public String getAccountBlank() {
        return accountBlank;
    }

    public void setAccountBlank(String accountBlank) {
        this.accountBlank = accountBlank;
    }

    public String getBankAccount() {
        return bankAccount;
    }

    public void setBankAccount(String bankAccount) {
        this.bankAccount = bankAccount;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getKpAddr() {
        return kpAddr;
    }

    public void setKpAddr(String kpAddr) {
        this.kpAddr = kpAddr;
    }

    public String getKpCode() {
        return kpCode;
    }

    public void setKpCode(String kpCode) {
        this.kpCode = kpCode;
    }

    public String getKpName() {
        return kpName;
    }

    public void setKpName(String kpName) {
        this.kpName = kpName;
    }

    public String getKpTel() {
        return kpTel;
    }

    public void setKpTel(String kpTel) {
        this.kpTel = kpTel;
    }

    @Override
    public String toString() {
        return "NuonuoBean_Result [accountBlank=" + accountBlank + ", bankAccount=" + bankAccount + ", code=" + code
                + ", id=" + id + ", kpAddr=" + kpAddr + ", kpCode=" + kpCode + ", kpName=" + kpName + ", kpTel=" + kpTel
                + "]";
    }

}

package gsondemo;

import java.io.Serializable;
import java.util.List;

@SuppressWarnings("serial")
public class CommonWithObject implements Serializable {

    private String code;
    private String describe;
    private Sub result;

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getDescribe() {
        return describe;
    }

    public void setDescribe(String describe) {
        this.describe = describe;
    }

    public Sub getResult() {
        return result;
    }

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

    @Override
    public String toString() {
        return "CommonWithObject [code=" + code + ", describe=" + describe + ", result=" + result + "]";
    }

}

package gsondemo;

import com.google.gson.Gson;

public class WithObjectAna {
    
    public static void main(String[] args) {
        String json =   "{"code":"S0000","
                +"            "describe":"数据正常返回","
                +"            "result":{"accountBlank":"xxxxxx","
                +"                         "bankAccount":"xxxxxx","
                +"                            "code":"xxx","
                +"                          "id":"xxxxxxx","
                +"                          "kpAddr":"xxxxxx","
                +"                          "kpCode":"xxxxx","
                +"                          "kpName":"xxxxx","
                +"                           "kpTel":"xxx"}}";
            Gson gson = new Gson();
            CommonWithObject commonWithObject = gson.fromJson(json, CommonWithObject.class);
            System.out.println(commonWithObject);
    }

}

嵌套json数组

{"code":"S0000",
"describe":"数据正常返回",
"result":[{"accountBlank":"xxxxxx",
    "bankAccount":"xxxxxx",
    "code":"xxx",
    "id":"xxxxxxx",
    "kpAddr":"xxxxxx",
    "kpCode":"xxxxx",
    "kpName":"xxxxx",
    "kpTel":"xxx"}]}

package gsondemo;

import java.io.Serializable;
import java.util.List;

@SuppressWarnings("serial")
public class CommonWithArray implements Serializable {
    
    private String code;
    private String describe;
    private List<Sub> result;

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getDescribe() {
        return describe;
    }

    public void setDescribe(String describe) {
        this.describe = describe;
    }

    public List<Sub> getResult() {
        return result;
    }

    public void setResult(List<Sub> result) {
        this.result = result;
    }

    @Override
    public String toString() {
        return "CommonWithObject [code=" + code + ", describe=" + describe + ", result=" + result + "]";
    }

}

package gsondemo;

import com.google.gson.Gson;

public class WithArrayAna {
    
    public static void main(String[] args) {
        String json =   "{"code":"S0000","
                +"            "describe":"数据正常返回","
                +"            "result":[{"accountBlank":"xxxxxx","
                +"                         "bankAccount":"xxxxxx","
                +"                            "code":"xxx","
                +"                          "id":"xxxxxxx","
                +"                          "kpAddr":"xxxxxx","
                +"                          "kpCode":"xxxxx","
                +"                          "kpName":"xxxxx","
                +"                           "kpTel":"xxx"}]}";
            Gson gson = new Gson();
            CommonWithArray commonWithArray = gson.fromJson(json, CommonWithArray.class);
            System.out.println(commonWithArray);
    }

}

主要区别就是bean类的区别，根据解析的情况组合所需要的bean