图片上传流程优化

novel-common/src/main/java/com/java2nb/novel/core/bean/ResultBean.java

@@ -30,9 +30,9 @@ public class ResultBean<T> implements Serializable {
 
     }
 
-    private ResultBean(ResponseStatus ResponseStatus) {
-        this.code = ResponseStatus.getCode();;
-        this.msg = ResponseStatus.getMsg();
+    private ResultBean(ResponseStatus responseStatus) {
+        this.code = responseStatus.getCode();;
+        this.msg = responseStatus.getMsg();
     }
 
     private ResultBean(T data) {
@@ -44,30 +44,30 @@ public class ResultBean<T> implements Serializable {
     /**
      * 业务处理成功,无数据返回
      * */
-    public static ResultBean ok() {
-        return new ResultBean();
+    public static ResultBean<Void> ok() {
+        return new ResultBean<>();
     }
 
     /**
      * 业务处理成功，有数据返回
      * */
-    public static <T> ResultBean ok(T data) {
-        return new ResultBean(data);
+    public static <T> ResultBean<T> ok(T data) {
+        return new ResultBean<>(data);
     }
 
     /**
      * 业务处理失败
      * */
-    public static ResultBean fail(ResponseStatus ResponseStatus) {
-        return new ResultBean(ResponseStatus);
+    public static ResultBean<Void> fail(ResponseStatus responseStatus) {
+        return new ResultBean<>(responseStatus);
     }
 
 
     /**
      * 系统错误
      * */
-    public static ResultBean error() {
-        return new ResultBean(ResponseStatus.ERROR);
+    public static ResultBean<Void> error() {
+        return new ResultBean<>(ResponseStatus.ERROR);
     }
 }
 

novel-common/src/main/java/com/java2nb/novel/core/enums/ResponseStatus.java

@@ -68,6 +68,12 @@ public enum ResponseStatus {
      * */
     ES_SEARCH_FAIL(9001,"搜索引擎查询错误！"),
 
+    /**
+     * 文件相关错误
+     * */
+    FILE_DIR_MAKE_FAIL(10001,"目录创建失败"),
+    FILE_NOT_IMAGE(10002,"请上传图片类型的文件"),
+    FILE_SIZE_LIMIT(10003,"文件大小超出限制"),
 
     /**
      * 其他通用错误

novel-common/src/main/java/com/java2nb/novel/core/utils/FileUtil.java

@@ -1,6 +1,7 @@
 package com.java2nb.novel.core.utils;
 
 import lombok.SneakyThrows;
+import lombok.experimental.UtilityClass;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.codec.Charsets;
 import org.apache.http.client.utils.DateUtils;
@@ -11,6 +12,7 @@ import org.springframework.http.HttpMethod;
 import org.springframework.http.ResponseEntity;
 
 import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
 import java.io.*;
 import java.util.Date;
 import java.util.Objects;
@@ -19,13 +21,14 @@ import java.util.Objects;
  * 文件操作工具类
  * @author 11797
  */
+@UtilityClass
 @Slf4j
 public class FileUtil {
 
     /**
      * 网络图片转本地
      * */
-    public static String network2Local(String picSrc,String picSavePath,String visitPrefix) {
+    public String network2Local(String picSrc,String picSavePath,String visitPrefix) {
         InputStream input = null;
         OutputStream out = null;
         try {
@@ -82,5 +85,21 @@ public class FileUtil {
     }
 
 
+    /**
+     * 判断文件是否为图片
+     * @param file 需要判断的文件
+     * @return true:是图片，false:不是图片
+     * */
+    @SneakyThrows
+    public boolean isImage(File file){
+
+        BufferedImage bi = ImageIO.read(file);
+
+        return bi != null;
+
+
+    }
+
+
 
 }

novel-common/src/main/resources/application-common.yml

@@ -11,6 +11,11 @@ spring:
     generator:
       write-numbers-as-strings: true
 
+  #上传文件的最大值（1M）
+  servlet:
+    multipart:
+      max-file-size: 1048576
+
 #缓存类型，ehcache(默认)、redis
 cache:
   type: ehcache
@@ -26,3 +31,5 @@ logging:
   config: classpath:logback-boot.xml
 
 
+
+