✨ 本地存储, 文件不存在时, 给与友好提示

src/main/java/im/zhaojun/common/exception/GlobleExceptionHandler.java

@@ -16,12 +16,12 @@ import org.springframework.web.bind.annotation.ResponseStatus;
  * @author zhaojun
  */
 @ControllerAdvice
-@ResponseBody
 public class GlobleExceptionHandler {
 
     private static final Logger log = LoggerFactory.getLogger(GlobleExceptionHandler.class);
 
     @ExceptionHandler(SearchDisableException.class)
+    @ResponseBody
     @ResponseStatus(code= HttpStatus.INTERNAL_SERVER_ERROR)
     public ResultBean searchDisableExceptionHandler(SearchDisableException e) {
         if (log.isDebugEnabled()) {
@@ -32,6 +32,7 @@ public class GlobleExceptionHandler {
 
 
     @ExceptionHandler
+    @ResponseBody
     @ResponseStatus
     public ResultBean searchDisableExceptionHandler(StorageStrategyUninitializedException e) {
         if (log.isDebugEnabled()) {
@@ -40,6 +41,16 @@ public class GlobleExceptionHandler {
         return ResultBean.error(e.getMessage());
     }
 
+
+    /**
+     * 不存在的文件异常
+     */
+    @ExceptionHandler({NotExistFileException.class})
+    @ResponseStatus(HttpStatus.NOT_FOUND)
+    public String notExistFile(Exception ex) {
+        return "error/404";
+    }
+
     /**
      * 捕获 ClientAbortException 异常, 不做任何处理, 防止出现大量堆栈日志输出, 此异常不影响功能.
      */
@@ -53,6 +64,7 @@ public class GlobleExceptionHandler {
     }
 
     @ExceptionHandler
+    @ResponseBody
     @ResponseStatus(code= HttpStatus.INTERNAL_SERVER_ERROR)
     public ResultBean searchDisableExceptionHandler(Exception e) {
         if (log.isDebugEnabled()) {

src/main/java/im/zhaojun/common/exception/NotExistFileException.java

@@ -0,0 +1,29 @@
+package im.zhaojun.common.exception;
+
+/**
+ * @author zhaojun
+ * @date 2020/1/20 22:15
+ */
+public class NotExistFileException extends RuntimeException {
+
+    public NotExistFileException() {
+        super();
+    }
+
+    public NotExistFileException(String message) {
+        super(message);
+    }
+
+    public NotExistFileException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public NotExistFileException(Throwable cause) {
+        super(cause);
+    }
+
+    protected NotExistFileException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+
+}

src/main/java/im/zhaojun/common/util/StringUtils.java

@@ -50,7 +50,7 @@ public class StringUtils {
             path = DELIMITER + path;
         }
 
-        if (domain.charAt(domain.length() - 1) == DELIMITER) {
+        if (domain != null && domain.charAt(domain.length() - 1) == DELIMITER) {
             domain = domain.substring(0, domain.length() - 2);
         }
 

src/main/java/im/zhaojun/local/controller/LocalController.java

@@ -1,6 +1,7 @@
 package im.zhaojun.local.controller;
 
 import cn.hutool.core.util.URLUtil;
+import im.zhaojun.common.exception.NotExistFileException;
 import im.zhaojun.common.util.StringUtils;
 import im.zhaojun.local.service.LocalServiceImpl;
 import org.springframework.core.io.FileSystemResource;
@@ -42,7 +43,7 @@ public class LocalController {
     private ResponseEntity<FileSystemResource> export(File file) {
 
         if (!file.exists()) {
-            return ResponseEntity.notFound().build();
+            throw new NotExistFileException();
         }