Java如何對(duì)返回參數(shù)進(jìn)行處理

更新時(shí)間：2024年07月05日 09:04:49 作者：HelIanthuss

這篇文章主要介紹了Java如何對(duì)返回參數(shù)進(jìn)行處理問(wèn)題,具有很好的參考價(jià)值,希望對(duì)大家有所幫助,如有錯(cuò)誤或未考慮完全的地方,望不吝賜教

Java對(duì)返回參數(shù)進(jìn)行處理

根據(jù)返回參數(shù)格式獲取其中的值

1.得到ResponseEntity<String> responseEntity對(duì)象

import org.springframework.http.ResponseEntity;

得到ResponseEntity<String> responseEntity對(duì)象

<200,

{
    "code":0,
    "data":{
        "list":[
            {
                "amount":0,
                "auditTime":"",
                "channelType":"",
                "createTime":"2019-08-13 17:01:55",
                "creditStatus":"",
                "edit":true,
                "fundsStatus":"",
                "id":372,
                "idNo":"",
                "lendRequestId":0,
                "mobile":"13289989000",
                "name":"客戶(hù)姓名",
                "soinsStatus":"",
                "state":0,
                "stateText":"",
                "viewStateText":0
            }
        ]
    },
    "mask":"251eeedb-e214-47c6-aa0c-3eb6c7b67aa0",
    "msg":"success",
    "timestamp":1566089672
}

,{Server=[Tengine/2.1.1], Date=[Sun, 18 Aug 2019 00:54:32 GMT], Content-Type=[application/json;charset=UTF-8], Content-Length=[412], Connection=[keep-alive]}>

2.根據(jù)ResponseEntity<String> responseEntity對(duì)象

獲取body部分，body為json格式字符串

String content = responseEntity.getBody();

content輸出如下：

{
    "code":0,
    "data":{
        "list":[
            {
                "amount":0,
                "auditTime":"",
                "channelType":"",
                "createTime":"2019-08-13 17:01:55",
                "creditStatus":"",
                "edit":true,
                "fundsStatus":"",
                "id":372,
                "idNo":"",
                "lendRequestId":0,
                "mobile":"13243345566",
                "name":"客戶(hù)姓名",
                "soinsStatus":"",
                "state":0,
                "stateText":"",
                "viewStateText":0
            }
        ]
    },
    "mask":"251eeedb-e214-47c6-aa0c-3eb6c7b67aa0",
    "msg":"success",
    "timestamp":1566089672
}

3.獲取list中的id，name，mobile等字段值

3.1將json字符串轉(zhuǎn)化為json對(duì)象

//將json字符串轉(zhuǎn)化為json對(duì)象
JSONObject json = JSONObject.parseObject(content);

{
    "msg":"success",
    "code":0,
    "data":{
        "list":[
            {
                "amount":0,
                "soinsStatus":"",
                "viewStateText":0,
                "edit":true,
                "mobile":"12324435555",
                "channelType":"",
                "creditStatus":"",
                "fundsStatus":"",
                "idNo":"",
                "auditTime":"",
                "createTime":"2019-08-13 17:01:55",
                "stateText":"",
                "name":"客戶(hù)姓名",
                "id":372,
                "lendRequestId":0,
                "state":0
            }
        ]
    },
    "mask":"251eeedb-e214-47c6-aa0c-3eb6c7b67aa0",
    "timestamp":1566089672
}

3.2 取出data部分

//取出data部分對(duì)象
JSONObject data = json.getJSONObject("data");

{
    "list":[
        {
            "amount":0,
            "soinsStatus":"",
            "viewStateText":0,
            "edit":true,
            "mobile":"13234444555",
            "channelType":"",
            "creditStatus":"",
            "fundsStatus":"",
            "idNo":"",
            "auditTime":"",
            "createTime":"2019-08-13 17:01:55",
            "stateText":"",
            "name":"客戶(hù)姓名",
            "id":372,
            "lendRequestId":0,
            "state":0
        }
    ]
}

3.3 data中包含有數(shù)組

list中的內(nèi)容帶有中括號(hào)[]，所以要轉(zhuǎn)化為JSONArray類(lèi)型的對(duì)象

//轉(zhuǎn)化為JSONArray類(lèi)型的對(duì)象
JSONArray jsonArray = data.getJSONArray("list");


[
    {
        "amount":0,
        "soinsStatus":"",
        "viewStateText":0,
        "edit":true,
        "mobile":"13234444555",
        "channelType":"",
        "creditStatus":"",
        "fundsStatus":"",
        "idNo":"",
        "auditTime":"",
        "createTime":"2019-08-13 17:01:55",
        "stateText":"",
        "name":"客戶(hù)姓名",
        "id":372,
        "lendRequestId":0,
        "state":0
    }
]

3.4 若為多個(gè)數(shù)組

jsonArray.getJSONObject（index）

//隨機(jī)選取一個(gè)數(shù)組
JSONObject idInfo = jsonArray.getJSONObject(randomInteger(0,jsonArray.size()));
String id=idInfo.getString("id")；

java后端常用返回參數(shù)，復(fù)制粘貼直接用

@Data
public class CommonResult<T> {
    
    /**
     * 結(jié)果
     */
    private T data;
 
    /**
     * 狀態(tài)碼
     */
    private Integer code;
 
    /**
     * 狀態(tài)碼描述
     */
    private String message;
 
    public CommonResult() {}
 
    public CommonResult(Integer code, String message) {
        this.code = code;
        this.message = message;
    }
 
 
 
 
    protected CommonResult(Integer code, String message, T data) {
        this.code = code;
        this.message = message;
        this.data = data;
    }
 
    /**
     * 成功返回結(jié)果
     *
     */
    public static <T> CommonResult<T> success() {
        return new CommonResult<>(ExceptionCode.SUCCESS.getCode(), ExceptionCode.SUCCESS.getMessage());
    }
 
    /**
     * 成功返回結(jié)果
     *
     * @param data 獲取的數(shù)據(jù)
     */
    public static <T> CommonResult<T> success(T data ) {
        return new CommonResult<>(ExceptionCode.SUCCESS.getCode(), ExceptionCode.SUCCESS.getMessage(), data);
    }
 
 
 
    /**
     * 成功返回結(jié)果
     *
     * @param data 獲取的數(shù)據(jù)
     * @param  message 提示信息
     */
    public static <T> CommonResult<T> success(T data, String message) {
        return new CommonResult<>(ExceptionCode.SUCCESS.getCode(), message, data);
    }
 
    /**
     * 失敗返回結(jié)果
     * @param errorCode 錯(cuò)誤碼
     * @param message 錯(cuò)誤信息
     */
    public static <T> CommonResult<T> failed(Integer errorCode, String message) {
        return new CommonResult<>(errorCode, message, null);
    }
 
    /**
     * 失敗返回結(jié)果
     * @param message 提示信息
     */
    public static <T> CommonResult<T> failed(String message) {
        return new CommonResult<>(ExceptionCode.FAILED.getCode(), message, null);
    }
 
    /**
     * 權(quán)限過(guò)期
     */
    public static <T> CommonResult<T> unauthorized() {
        return new CommonResult<>(ExceptionCode.FAILED.getCode(), "用戶(hù)登錄已過(guò)期，請(qǐng)重新登錄！", null);
    }
 
}

public class ExceptionCode {
 
    public static final ExceptionCode SUCCESS = new ExceptionCode(200, "操作成功");
    public static final ExceptionCode FAILED = new ExceptionCode(500, "系統(tǒng)異常");
 
    private int code;
    private String message;
 
    public ExceptionCode(int code, String message) {
        this.code = code;
        this.message= message;
    }
 
    public ExceptionCode(String message) {
        this.message = message;
    }
 
    public Integer getCode() {
        return this.code;
    }
 
    public String getMessage() {
        return this.message;
    }
 
}