java删除附件图片

package com.zjn.IO;

import java.io.File;

public class DeleteFileController {
	/**   
     * 删除文件，可以是单个文件或文件夹   
     * @param   fileName    待删除的文件名   
     * @return 文件删除成功返回true,否则返回false   
     */   
    public static boolean delete(String fileName){    
        File file = new File(fileName);    
        if(!file.exists()){    
            System.out.println("删除文件失败："+fileName+"文件不存在");    
            return false;    
        }else{    
            if(file.isFile()){    
                //删除文件     
                return deleteFile(fileName);    
            }else{ 
            	//删除文件夹
                return deleteDirectory(fileName);    
            }    
        }    
    }    
         
    /**   
     * 删除单个文件   
     * @param   fileName    被删除文件的文件名   
     * @return 单个文件删除成功返回true,否则返回false   
     */   
    public static boolean deleteFile(String fileName){    
        File file = new File(fileName);    
        if(file.isFile() && file.exists()){    
            file.delete();    
            System.out.println("删除单个文件"+fileName+"成功！");    
            return true;    
        }else{    
            System.out.println("删除单个文件"+fileName+"失败！");    
            return false;    
        }    
    }    
         
    /**   
     * 删除目录（文件夹）以及目录下的文件   
     * @param   dir 被删除目录的文件路径   
     * @return  目录删除成功返回true,否则返回false   
     */   
    public static boolean deleteDirectory(String dir){    
        //如果dir不以文件分隔符结尾，自动添加文件分隔符    
        if(!dir.endsWith(File.separator)){    
            dir = dir+File.separator;    
        }    
        File dirFile = new File(dir);    
        //如果dir对应的文件不存在，或者不是一个目录，则退出    
        if(!dirFile.exists() || !dirFile.isDirectory()){    
            System.out.println("删除目录失败"+dir+"目录不存在！");    
            return false;    
        }    
        boolean flag = true;    
        //删除文件夹下的所有文件(包括子目录)    
        File[] files = dirFile.listFiles();    
        for(int i=0;i<files.length;i++){    
            //删除子文件    
            if(files[i].isFile()){    
                flag = deleteFile(files[i].getAbsolutePath());    
                if(!flag){    
                    break;    
                }    
            }    
            //删除子目录    
            else{    
                flag = deleteDirectory(files[i].getAbsolutePath());    
                if(!flag){    
                    break;    
                }    
            }    
        }    
             
        if(!flag){    
            System.out.println("删除目录失败");    
            return false;    
        }    
             
        //删除当前目录    
        if(dirFile.delete()){    
            System.out.println("删除目录"+dir+"成功！");    
            return true;    
        }else{    
            System.out.println("删除目录"+dir+"失败！");    
            return false;    
        }    
    }    
  //删除文件夹
  //param folderPath 文件夹完整绝对路径
       public static void delFolder(String folderPath) {
       try {
          delAllFile(folderPath); //删除完里面所有内容
          String filePath = folderPath;
          filePath = filePath.toString();
          java.io.File myFilePath = new java.io.File(filePath);
          myFilePath.delete(); //删除空文件夹
       } catch (Exception e) {
         e.printStackTrace(); 
       }
  }
 
  //删除指定文件夹下所有文件
  //param path 文件夹完整绝对路径
     public static boolean delAllFile(String path) {
         boolean flag = false;
         File file = new File(path);
         if (!file.exists()) {
           return flag;
         }
         if (!file.isDirectory()) {
           return flag;
         }
         String[] tempList = file.list();
         File temp = null;
         for (int i = 0; i < tempList.length; i++) {
            if (path.endsWith(File.separator)) {
               temp = new File(path + tempList[i]);
            } else {
                temp = new File(path + File.separator + tempList[i]);
            }
            if (temp.isFile()) {
               temp.delete();
            }
            if (temp.isDirectory()) {
               delAllFile(path + "/" + tempList[i]);//先删除文件夹里面的文件
               delFolder(path + "/" + tempList[i]);//再删除空文件夹
               flag = true;
            }
         }
         return flag;
       }
    
    public static void main(String[] args) {
        String fileDir = "D:\\logo.png";    
        DeleteFileController.delete(fileDir);
        System.out.println("删除文件结束");
        DeleteFileController t = new DeleteFileController();
        delFolder("D:/zz");
        System.out.println("deleted");
 
             
    }    


}

　　// pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.cn</groupId>
  <artifactId>upload</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <dependencies>
	<dependency>
    	<groupId>org.springframework</groupId>
    	<artifactId>spring-webmvc</artifactId>
    	<version>4.0.6.RELEASE</version>
    </dependency>
   <!--  <dependency>
    	<groupId>com.fasterxml.jackson.core</groupId>
    	<artifactId>jackson-annotations</artifactId>
    	<version>2.2.3</version>
    </dependency> 
    <dependency>
    	<groupId>com.fasterxml.jackson.core</groupId>
    	<artifactId>jackson-databind</artifactId>
    	<version>2.2.3</version>
    </dependency> -->
    <!--文件上传下载所用的包============  -->
    <dependency>
    	<groupId>commons-fileupload</groupId>
    	<artifactId>commons-fileupload</artifactId>
    	<version>1.3.1</version>
    </dependency>
    <dependency>
    	<groupId>commons-io</groupId>
    	<artifactId>commons-io</artifactId>
    	<version>2.4</version>
    </dependency>
    <dependency> 
	   <groupId>javax.servlet</groupId> 
	   <artifactId>servlet-api</artifactId> 
	   <version>2.5</version> 
	   <scope>provided</scope> 
    </dependency> 
    <!-- jstl-api -->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl-api</artifactId>
            <version>1.2</version>
        </dependency>
        <!-- jstl-impl -->
        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>jstl-impl</artifactId>
            <version>1.2</version>
        </dependency>
        <!-- 标签standard包 -->
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
        <!-- 数据库配置 -->
        <!--mybatis mysql-->
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>druid</artifactId>
		    <version>1.0.2</version>
		</dependency>
		<dependency>
		    <groupId>org.mybatis</groupId>
		    <artifactId>mybatis-spring</artifactId>
		    <version>1.2.2</version>
		</dependency>
		<dependency>
		    <groupId>org.mybatis</groupId>
		    <artifactId>mybatis</artifactId>
		    <version>3.2.6</version>
		</dependency>
		<dependency>
		    <groupId>mysql</groupId>
		    <artifactId>mysql-connector-java</artifactId>
		    <version>5.1.29</version>
		</dependency>
		<!-- jdbc驱动jar包 -->
		<dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.1.1.RELEASE</version>
        </dependency>
        <!-- 生成token需要的jar包 -->
	    <dependency>
	      <groupId>com.auth0</groupId>
	      <artifactId>java-jwt</artifactId>
	      <version>3.8.2</version>
	    </dependency>
	    <!--  企业微信-->
		<dependency>
		    <groupId>com.google.code.gson</groupId>
		    <artifactId>gson</artifactId>
		    <version>2.8.2</version>
		</dependency>
		<dependency>
		    <groupId>org.apache.httpcomponents</groupId>
		    <artifactId>httpclient</artifactId>
		    <version>4.5.2</version>
		</dependency>
		 
		<dependency>
		    <groupId>org.apache.httpcomponents</groupId>
		    <artifactId>httpcore</artifactId>
		    <version>4.4.5</version>
		</dependency>
		<dependency>
		    <groupId>net.sf.json-lib</groupId>
		   <artifactId>json-lib</artifactId>
		   <version>2.4</version>
		  <classifier>jdk15</classifier>
		</dependency>
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>fastjson</artifactId>
		    <version>1.2.51</version>
		</dependency>
</dependencies>
</project>