modify

spring/springmvc-base-annotation/README.md

@@ -744,41 +744,53 @@ public class FileController {
 package com.heibaiying.utils;
 
 import org.springframework.web.multipart.MultipartFile;
-
 import java.io.*;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
 
 /**
  * @author : heibaiying
  * @description : 文件上传工具类
  */
+
 public class FileUtil {
 
     public static String saveFile(MultipartFile file, String path) {
+        InputStream inputStream = null;
+        FileOutputStream outputStream = null;
         String fullPath = path + File.separator + file.getOriginalFilename();
         try {
             File saveDir = new File(path);
             if (!saveDir.exists()) {
                 saveDir.mkdirs();
             }
-            FileOutputStream outputStream = new FileOutputStream(new File(fullPath));
+            outputStream = new FileOutputStream(new File(fullPath));
-            InputStream inputStream = file.getInputStream();
+            inputStream = file.getInputStream();
             byte[] bytes = new byte[1024 * 1024];
             int read;
             while ((read = inputStream.read(bytes)) != -1) {
                 outputStream.write(bytes, 0, read);
             }
-
         } catch (IOException e) {
             e.printStackTrace();
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+            if (outputStream != null) {
+                try {
+                    outputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
         }
         return fullPath;
     }
 
 }
-
 ```
 
 4.新建用于上传的jsp页面，上传文件时表单必须声明 enctype="multipart/form-data"

spring/springmvc-base-annotation/src/main/java/com/heibaiying/utils/FileUtil.java

@@ -2,34 +2,49 @@ package com.heibaiying.utils;
 
 import org.springframework.web.multipart.MultipartFile;
 
-import java.io.File;
+import java.io.*;
-import java.io.FileOutputStream;
+
-import java.io.IOException;
-import java.io.InputStream;
 
 /**
  * @author : heibaiying
  * @description : 文件上传工具类
  */
+
 public class FileUtil {
 
     public static String saveFile(MultipartFile file, String path) {
+        InputStream inputStream = null;
+        FileOutputStream outputStream = null;
         String fullPath = path + File.separator + file.getOriginalFilename();
         try {
             File saveDir = new File(path);
             if (!saveDir.exists()) {
                 saveDir.mkdirs();
             }
-            FileOutputStream outputStream = new FileOutputStream(new File(fullPath));
+            outputStream = new FileOutputStream(new File(fullPath));
-            InputStream inputStream = file.getInputStream();
+            inputStream = file.getInputStream();
             byte[] bytes = new byte[1024 * 1024];
             int read;
             while ((read = inputStream.read(bytes)) != -1) {
                 outputStream.write(bytes, 0, read);
             }
-
         } catch (IOException e) {
             e.printStackTrace();
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+            if (outputStream != null) {
+                try {
+                    outputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
         }
         return fullPath;
     }

spring/springmvc-base/README.md

@@ -735,41 +735,53 @@ public class FileController {
 package com.heibaiying.utils;
 
 import org.springframework.web.multipart.MultipartFile;
-
 import java.io.*;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
 
 /**
  * @author : heibaiying
  * @description : 文件上传工具类
  */
+
 public class FileUtil {
 
     public static String saveFile(MultipartFile file, String path) {
+        InputStream inputStream = null;
+        FileOutputStream outputStream = null;
         String fullPath = path + File.separator + file.getOriginalFilename();
         try {
             File saveDir = new File(path);
             if (!saveDir.exists()) {
                 saveDir.mkdirs();
             }
-            FileOutputStream outputStream = new FileOutputStream(new File(fullPath));
+            outputStream = new FileOutputStream(new File(fullPath));
-            InputStream inputStream = file.getInputStream();
+            inputStream = file.getInputStream();
             byte[] bytes = new byte[1024 * 1024];
             int read;
             while ((read = inputStream.read(bytes)) != -1) {
                 outputStream.write(bytes, 0, read);
             }
-
         } catch (IOException e) {
             e.printStackTrace();
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+            if (outputStream != null) {
+                try {
+                    outputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
         }
         return fullPath;
     }
 
 }
-
 ```
 
 4.新建用于上传的jsp页面，上传文件时表单必须声明 enctype="multipart/form-data"

spring/springmvc-base/src/main/java/com/heibaiying/utils/FileUtil.java

@@ -3,33 +3,48 @@ package com.heibaiying.utils;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.*;
-import java.util.ArrayList;
+
-import java.util.Arrays;
-import java.util.List;
 
 /**
  * @author : heibaiying
  * @description : 文件上传工具类
  */
+
 public class FileUtil {
 
     public static String saveFile(MultipartFile file, String path) {
+        InputStream inputStream = null;
+        FileOutputStream outputStream = null;
         String fullPath = path + File.separator + file.getOriginalFilename();
         try {
             File saveDir = new File(path);
             if (!saveDir.exists()) {
                 saveDir.mkdirs();
             }
-            FileOutputStream outputStream = new FileOutputStream(new File(fullPath));
+            outputStream = new FileOutputStream(new File(fullPath));
-            InputStream inputStream = file.getInputStream();
+            inputStream = file.getInputStream();
             byte[] bytes = new byte[1024 * 1024];
             int read;
             while ((read = inputStream.read(bytes)) != -1) {
                 outputStream.write(bytes, 0, read);
             }
-
         } catch (IOException e) {
             e.printStackTrace();
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+            if (outputStream != null) {
+                try {
+                    outputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
         }
         return fullPath;
     }