在Spring Boot v2.2.2.RELEASE中的异常处理程序不起作用？

huangapple
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英文:

Exception Handler in Spring boot v 2.2.2.RELEASE not working?

问题

以下是您提供的代码部分的中文翻译：

FileRestService 类：

package com.file.web;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.annotation.processing.FilerException;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import com.file.entities.FileRepository;
import com.file.service.FileService;

@CrossOrigin("*")
@RestController
public class FileRestService {
    @Autowired
    FileRepository fileRepository;

    @Autowired
    FileService fileService;

    @RequestMapping(value="/upload/file", method=RequestMethod.POST)
    public ResponseEntity<Object> uploadFile(@RequestParam("file") MultipartFile file) throws FilerException {
        fileService.uploadFile(file);
        return new ResponseEntity<Object>("文件上传成功", HttpStatus.OK);
    }
}

AppExceptionHandeller 类：

package com.file.web.exeception;

import java.util.ArrayList;
import java.util.List;

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.context.request.WebRequest;

@ControllerAdvice
public class AppExceptionHandeller {
    @ExceptionHandler(FileException.class)
    public ResponseEntity<Object> handleException(FileStorageException ex, WebRequest request) {
        List<String> errors = new ArrayList<String>();
        errors.add("会话已过期");
        ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), errors);
        return new ResponseEntity<Object>(apiError, new HttpHeaders(), apiError.getStatus());
    }
}

FileServiceImp 类：

package com.file.service;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;

import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import com.file.web.exeception.FileStorageException;

@Service
public class FileServiceImp implements FileService {
    public String uploadDir="/Users/mac/Desktop/upload";

    @Override
    public void uploadFile(MultipartFile file) {
        Path copyLocation = Paths.get(uploadDir + File.separator + StringUtils.cleanPath(file.getOriginalFilename()));
        try {
            Files.copy(file.getInputStream(), copyLocation, StandardCopyOption.REPLACE_EXISTING);
        } catch (IOException e) {
            System.out.println("空文件...");
            throw new FileStorageException("无法存储文件 " + file.getOriginalFilename() + "。请重试！");
        }
    }

    @Override
    public void DownloadFile() {

    }
}

FileStorageException 类：

package com.file.web.exeception;

public class FileStorageException extends RuntimeException {
    private static final long serialVersionUID = 1L;
    private String msg;

    public FileStorageException(String msg) {
        this.msg = msg;
    }

    public String getMsg() {
        return msg;
    }
}

请注意，我只提供了代码部分的翻译，不包括代码外的附加内容。如果您有任何其他问题，欢迎继续询问。

英文:

I am implementing global error handling in my project using Spring boot. I am throwing a "FileStorageException " when my "File" object is "null". But the Spring exception handler is not catching it.

FileRestService class:

package com.file.web;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.annotation.processing.FilerException;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import com.file.entities.FileRepository;
import com.file.service.FileService;

@CrossOrigin(&quot;*&quot;)
@RestController
public class FileRestService {
	@Autowired
	FileRepository fileRepository;
	
	
	@Autowired
	FileService fileService;
	
	@RequestMapping(value=&quot;/upload/file&quot;,method=RequestMethod.POST)
	public ResponseEntity&lt;Object&gt; uploadFile(@RequestParam(&quot;file&quot;) MultipartFile file) throws FilerException {
		
		 fileService.uploadFile(file);
		
		return new ResponseEntity&lt;Object&gt;(&quot;file is uploaded successfuly&quot;,HttpStatus.OK);
	}
	
	
	
}

AppExceptionHandeller class

package com.file.web.exeception;

import java.util.ArrayList;
import java.util.List;



import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.context.request.WebRequest;




@ControllerAdvice
public class AppExceptionHandeller {
	@ExceptionHandler(FileException.class)
	public ResponseEntity&lt;Object&gt; etExcetion(FileStorageException ex, WebRequest request) {
			
			List&lt;String&gt; errors = new ArrayList&lt;String&gt;();
	errors.add(&quot;session exipred&quot;);
			ApiError apiError = new ApiError(HttpStatus.BAD_REQUEST, ex.getLocalizedMessage(), errors);
			return new ResponseEntity&lt;Object&gt;(apiError, new HttpHeaders(), apiError.getStatus());
		}
}

FileServiceImp class

package com.file.service;


import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;


import org.springframework.stereotype.Service;
import  org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import com.file.web.exeception.FileStorageException;




@Service
public class FileServiceImp implements FileService {
    public String uploadDir=&quot;/Users/mac/Desktop/upload&quot;;

	@Override
	public void uploadFile(MultipartFile file)   {
		//StringUtils.cleanPath(file.getOriginalFil);
		 Path copyLocation=Paths.get(uploadDir + File.separator + StringUtils.cleanPath(file.getOriginalFilename())); ;
		    try {
				Files.copy(file.getInputStream(), copyLocation, StandardCopyOption.REPLACE_EXISTING);
			} catch (IOException e) {
				// TODO Auto-generated catch block
				System.out.println(&quot;empty file ...&quot;);
	           throw new FileStorageException(&quot;Could not store file &quot; + file.getOriginalFilename()
               + &quot;. Please try again!&quot;);

				//e.printStackTrace();
			}         
	}

	@Override
	public void DownloadFile() {
		
	}
	
	

}

FileStorageException class

package com.file.web.exeception;

public class FileStorageException extends RuntimeException {

	
	 private static final long serialVersionUID = 1L;
	    private String msg;

	    public FileStorageException(String msg) {
	        this.msg = msg;
	    }

	    public String getMsg() {
	        return msg;
	    }	
	
}

observe the FileRestService class. When I get a request for a file , if the file is not present it throws
exception. By default this needs to be catched by the ExceptionHandler. But instead of this I am getting the stackTrace like following. Please help me in catching this exception globally.

I followed this tuto (https://devwithus.com/exception-handling-for-rest-api-with-spring-boot/)
and this (https://stackoverflow.com/questions/48501265/exception-handler-in-spring-boot-not-working)
I can’t find the solution I’m starting in spring

javax.annotation.processing.FilerException: Could not store file . Please try again!
	at com.file.service.FileServiceImp.uploadFile(FileServiceImp.java:34) ~[classes/:na]
	at com.file.web.FileRestService.uploadFile(FileRestService.java:41) ~[classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1591) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_212]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_212]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.29.jar:9.0.29]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_212]

答案1

得分: 0

我发现解决方案只是将FileException替换为FileStorageException

在FileRestService（将FilerException替换为FileStorageException）

在AppExceptionHandeller中（@ExceptionHandler(FileException.class)替换为@ExceptionHandler(FileStorageException.class))

英文:

I find solution just replaces FileException by FileStorageException

in FileRestService(throws FilerException... by throws FileStorageException)

in AppExceptionHandeller (@ExceptionHandler(FileException.class) by @ExceptionHandler(FileStorageException.class))

huangapple
  • 本文由 发表于 2020年10月27日 04:58:35
  • 转载请务必保留本文链接：https://go.coder-hub.com/64544884.html
  • java
  • spring-boot
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