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