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I. Introductio

Cum applicationes explicandi vere Booz, modo eventus responsionis et exceptiones tractantur, magnum momentum habet in conservabilitate, scalability et quadrigis collaborationis propositi. Dispersit responsio eventus et exceptio tractandi logicam saepe inducunt ad codicem redundantem quod difficile est ad cognoscendum et conservandum. Ergo, eventus unificati reditus et exceptio unificata tractatio sunt unum e machinis consilia ad meliorem project qualitatem.

2. Unified eventus reditus

Redit uniens eventus plerumque significare formam responsionem normae definire omnibus modis moderatoris. Hoc effici potest, ut unum vel plures responsiones entitates classes, quae communes regiones continent, ut status codicem, nuntium, notitias contineant. Post methodum moderatoris logicae negotium processit, hos agros frequentabit et clienti reddet.

Deinde inspiciamus quomodo unum effectum consequi reditus in SpringBoot.

1. Definire commune responsum object

Objectum generale responsum crea, missiones reditus ac prosperum defectum definias et ut obiectum commune reditus interfaciendi adhibeatur.

public class ResponseResult {

    private int code;

    private String message;

    private Object data;

    public static ResponseResult success(Object data) {
        ResponseResult responseResult = new ResponseResult();
        responseResult.setData(data);
        responseResult.setCode(ResultEnum.SUCCESS.code);
        return responseResult;
    }

    public static ResponseResult error(ResultEnum resultEnum) {
        return error(resultEnum, resultEnum.message);
    }

    public static ResponseResult error(ResultEnum resultEnum, String message) {
        ResponseResult responseResult = new ResponseResult();
        responseResult.setCode(resultEnum.code);
        responseResult.setMessage(message);
        return responseResult;
    }

    public int getCode() {
        return code;
    }

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

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }
}

2. Define interface responsio status codice

Definiens communis status codicis copia una est nucleorum clavium ad unum effectum reditus. Hic accessus non solum usum et conservabilitatem API meliorem facit, sed etiam clientem ad parse et processum responsionis notitiae efficacius reddit.

public enum ResultEnum {

    SUCCESS(200 ,"请求处理成功"),
    SERVICE_ERROR(500, "服务器异常，请稍后重试");

    public final Integer code;

    public final String message;

    ResultEnum(Integer code, String message) {
        this.code = code;
        this.message = message;
    }
}

3. Definire una victoria et deficiendi pertractatio modi

public class ResponseResult {

    private int code;

    private String message;

    private Object data;

    public static ResponseResult success(Object data) {
        ResponseResult responseResult = new ResponseResult();
        responseResult.setData(data);
        responseResult.setCode(ResultEnum.SUCCESS.code);
        return responseResult;
    }

    public static ResponseResult error(ResultEnum resultEnum) {
        return error(resultEnum, resultEnum.message);
    }

    public static ResponseResult error(ResultEnum resultEnum, String message) {
        ResponseResult responseResult = new ResponseResult();
        responseResult.setCode(resultEnum.code);
        responseResult.setMessage(message);
        return responseResult;
    }

    public int getCode() {
        return code;
    }

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

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }
}

4. Controller aequaliter respondet eventus

@GetMapping("/testResult")
 public ResponseResult test() {
     // 模拟业务逻辑
     try {
         // 假设这里有一些业务逻辑
         return ResponseResult.success("success");
     } catch (Exception e) {
         // 捕获异常并返回错误信息
         return ResponseResult.error(ResultEnum.SERVICE_ERROR);
     }
 }

3. Unified exceptio pertractatio

Exceptio unica tractatio utitur exceptione globali tracto ad excipiendas et ansas exceptiones in moderatoris coniectas. Aditus scribendi vitat duplicatam exceptionem tractandi codicem in unaquaque methodo moderatoris, et etiam exceptionem logicam tractantem magis centralem ac faciliorem tractandi facit.

@RestControllerAdvice
@RestControllerAdvice coniunctum annotationem est, quae compositum est ex @ControllerAdvice et @ResponseBody. Maxime adhibetur ad praebendum globalem figuram moderatoris tabulati, ut exceptio tractatio, notitia ligaturae, notitia praeprocessionis, etc. Cum contineat @ResponseBody, omnes rationes a @RestControllerAdvice processit scribet valorem reditus in corpus responsionis HTTP per defaltam et convenientem Content-Type pone.

@ExceptionHandler*
ExceptionHandler annotationem methodum notare adhibetur, quae exceptiones in moderatorem coniectas tractat. Cum methodus in moderatoris exceptionem iacit, ver quaeret rationem @ExceptionHandler annotatam quae exceptionem tractare potest. Si ita est, ratio vocatur et eius responsio redditur.

Notice

当使用@ControllerAdvice时，我们需要将@ResponseBody添加到异常处理方法上。
如果我们使用@RestControllerAdvice，就不需要添加。

Negotium 1. Definire exceptis classes

Classes una exceptio iuvare potest melius vos errores et exceptiones administrare, faciens errorum pertractatio in systemate constantius et praedictio.

public class BusinessException extends RuntimeException{

    private final ResultEnum resultEnum;

    public BusinessException(ResultEnum resultEnum, String message) {
        super(message);
        this.resultEnum = resultEnum;
    }

    public BusinessException(ResultEnum resultEnum) {
        this(resultEnum, resultEnum.message);
    }


}

2. Exceptio Global tracto

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler({BusinessException.class})
    public ResponseResult handleBusinessException(BusinessException businessException, HttpServletRequest request) {
        // 想处理的业务
        return ResponseResult.error(ResultEnum.SERVICE_ERROR, businessException.getMessage());
    }

    /**
     * 其他异常
     * @param e
     * @return
     */
    @ExceptionHandler(value = Exception.class)
    public ResponseResult handleOtherExceptions(Exception e) {
        // 这里可以根据不同的异常类型返回不同的状态码和消息
        // 但为了简单起见，这里只返回一个通用的错误信息
        return ResponseResult.error(ResultEnum.SERVICE_ERROR);
    }

}

3. Unified processus et usus

@GetMapping("/testException1")
    public ResponseResult test1() {
        if (true) {
            // 业务场景
            throw new BusinessException(ResultEnum.SERVICE_ERROR);
        }

        return ResponseResult.success("success");
    }

Beneficia una exceptio utendi pertractatio

codice reuse: Vitare scribendo similes effectus responsionis et exceptiones tractandi in pluribus locis codicibus.

Securus ponere: Cum forma responsionis vel exceptione tractatio logicae mutari debet, solum in uno loco mutari debet.

Collaboratio- nem: Quadrigis membra facilius intellegere et signa coding sequi possunt.

Scalability: Si novas responsiones rationes addere debes, vel exceptionem logicam tractantem, modo entibus extendere.