java框架--springmvc --ajax-json-upload/download+maven+ DES/MD5 请求加密

 注：eclipse 开发工具  <context:component-scan base-package="com.zhouwuji.controller"></context:component-scan> 加入后 controller包的控制类会有S符好

       commons io 和commons upload 开发

        FTP服务器创建和上下传文件(3)

       httpclient调用代码

package com.zhouwuji.controller;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.Iterator;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.FileUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

@Controller
public class FileController {
    @RequestMapping("/download.do")
    public void doMain(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
        //得到要下载的文件名
         String fileName =request.getParameter("filename"); 
         System.out.println("fileName:"+fileName.trim());
         //23239283-92489-阿凡达.avi
         // fileName="zhangruan.txt";
         // fileName = new String(fileName.getBytes("iso8859-1"),"UTF-8");
        //上传的文件都是保存在/WEB-INF/upload目录下的子目录当中
        String fileSaveRootPath=request.getServletContext().getRealPath("/WEB-INF/upload");
        //得到要下载的文件
        File file = new File(fileSaveRootPath + "\" + fileName);
        //如果文件不存在
        if(!file.exists()){
            request.setAttribute("message", "您要下载的资源已被删除！！");
            request.getRequestDispatcher("/fail.jsp").forward(request, response);
            return;
        }
        //处理文件名
        String realname = fileName.substring(fileName.indexOf(".")+1);
        //设置响应头，控制浏览器下载该文件
        response.setHeader("content-disposition", "attachment;filename=" + URLEncoder.encode(realname, "UTF-8"));
        //读取要下载的文件，保存到文件输入流
          
        FileInputStream in = new FileInputStream(file);
        //创建输出流
        OutputStream out = response.getOutputStream();
        //创建缓冲区
        byte buffer[] = new byte[1024];
        int len = 0;
        //循环将输入流中的内容读取到缓冲区当中
        while((len=in.read(buffer))>0){
            //输出缓冲区的内容到浏览器，实现文件下载
            out.write(buffer, 0, len);
        }
        System.out.println("下载成功");
        //关闭文件输入流
        in.close();
        //关闭输出流
        out.close();
    }
    
    
    
    @RequestMapping("/upload.do")   //@RequestParam("uploadfile")
    @ResponseBody
    public String queryFileData(@RequestParam("uploadfile")CommonsMultipartFile file,HttpServletRequest request){
        System.out.println("+++++++++++++++++"+request.getParameter("username"));
        /*MultipartFile是对当前上传的文件的封装，
         * 当同时上传多个文件时，可以给定多个MultipartFile参数（数组）
         */
        if(file!=null){
            System.out.println("文件对象接到了！");
            //获取文件名
            String filename=file.getOriginalFilename();
            //获取上传路径
            String path=request.getSession().getServletContext().getRealPath("/WEB-INF/upload/"+filename.trim());
            System.out.println("path:"+path);
            
            //创建文件流并指定写入路径
            File destFile=new File(path);
            
                //springmvc的方式
                //该方法自动操作，不需要额外的去关闭IO流
                //复制临时文件到指定文件夹下
                try {
                    FileUtils.copyInputStreamToFile(file.getInputStream(), destFile);
                    System.out.println("上传成功");
                    return "/success.jsp";
                } catch (IOException e) {
                    e.printStackTrace();
                    System.out.println("上传失败");
                    return "/error.jsp";
                }
        }else{
            System.out.println("文件没有对象接到了！");
            return "/error.jsp";
            
        }
    }
 }
/*文件对象接到了！
filename：中软笔记.txt
path:D:/apache-tomcat-7.0.82-windows-x64/apache-tomcat-7.0.82/webapps/project-ajaxjson/upload/中软笔记.txt
上传成功*/
FileController
package com.zhouwuji.controller;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;





import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.zhouwuji.util.EncryptUtil;

@Controller
public class LoginController {
      
    @RequestMapping("/json.do")
    @ResponseBody
    public  List<User> login(HttpServletRequest request) throws Exception{
        String  username=request.getParameter("username");
        String  password=request.getParameter("password");
        // key 为解密密钥
        String   key=request.getParameter("key");
        if (username !=null && password !=null ) {
            System.out.println("username:"+EncryptUtil.decrypt(username, key));
            System.out.println("password:"+EncryptUtil.decrypt(password, key));
            
        }
        if (key==null) {
            key="LmMGStGtOpF4xNyvYt54EQ==";
        }
        List<User> users=new ArrayList<User>();
        users.add(new User(1, EncryptUtil.encrypt("张三",key), "男"));
        users.add(new User(2, EncryptUtil.encrypt("李四",key), "男"));
        users.add(new User(3, EncryptUtil.encrypt("西施",key), "女"));
        return users;
    }
}
LoginController 
package com.zhouwuji.controller;

public class User {
    private int id;
    private String name;
    private String sex;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public User(int id, String name, String sex) {
        super();
        this.id = id;
        this.name = name;
        this.sex = sex;
    }
    public User() {
        super();
    }
    
}
User
package com.zhouwuji.util;

import java.io.IOException;  
import java.io.UnsupportedEncodingException;  
import java.security.MessageDigest;  
  

import javax.crypto.Cipher;  
import javax.crypto.spec.IvParameterSpec;  
import javax.crypto.spec.SecretKeySpec;  
  

import sun.misc.BASE64Decoder;  
import sun.misc.BASE64Encoder;  
  
/** 
 * 功能描述  DES+MD5 加密工具类
 * 加密常用类 
 */  
public class EncryptUtil {  
    // 密钥是16位长度的byte[]进行Base64转换后得到的字符串  
   // public static String key = "LmMGStGtOpF4xNyvYt54EQ==";  
   
    /** 
     * <li> 
     * 方法名称:encrypt</li> <li> 
     * 加密方法 
     * @param xmlStr 
     *            需要加密的消息字符串 
     * @return 加密后的字符串 
     */  
    public static String encrypt(String xmlStr,String key) {  
        byte[] encrypt = null;  
    
        try {  
            // 取需要加密内容的utf-8编码。  
            encrypt = xmlStr.getBytes("utf-8");  
        } catch (UnsupportedEncodingException e) {  
            e.printStackTrace();  
        }  
        // 取MD5Hash码，并组合加密数组  
        byte[] md5Hasn = null;  
        try {  
            md5Hasn = EncryptUtil.MD5Hash(encrypt, 0, encrypt.length);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        // 组合消息体  
        byte[] totalByte = EncryptUtil.addMD5(md5Hasn, encrypt);  
  
        // 取密钥和偏转向量  
        byte[] key1 = new byte[8];  
        byte[] iv = new byte[8];  
        getKeyIV(key, key1, iv);  
        SecretKeySpec deskey = new SecretKeySpec(key1, "DES");  
        IvParameterSpec ivParam = new IvParameterSpec(iv);  
  
        // 使用DES算法使用加密消息体  
        byte[] temp = null;  
        try {  
            temp = EncryptUtil.DES_CBC_Encrypt(totalByte, deskey, ivParam);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
  
        // 使用Base64加密后返回  
        return new BASE64Encoder().encode(temp);  
    }  
  
    /** 
     * <li> 
     * 方法名称:encrypt</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * 解密方法 
     * </pre> 
     *  
     * </li> 
     *  
     * @param xmlStr 
     *            需要解密的消息字符串 
     * @return 解密后的字符串 
     * @throws Exception 
     */  
    public static String decrypt(String xmlStr,String key) throws Exception {  
        // base64解码  
        BASE64Decoder decoder = new BASE64Decoder();  
        byte[] encBuf = null;  
        try {  
            encBuf = decoder.decodeBuffer(xmlStr);  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
  
        // 取密钥和偏转向量  
        byte[] key1 = new byte[8];  
        byte[] iv = new byte[8];  
        getKeyIV(key, key1, iv);  
  
        SecretKeySpec deskey = new SecretKeySpec(key1, "DES");  
        IvParameterSpec ivParam = new IvParameterSpec(iv);  
  
        // 使用DES算法解密  
        byte[] temp = null;  
        try {  
            temp = EncryptUtil.DES_CBC_Decrypt(encBuf, deskey, ivParam);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
  
        // 进行解密后的md5Hash校验  
        byte[] md5Hash = null;  
        try {  
            md5Hash = EncryptUtil.MD5Hash(temp, 16, temp.length - 16);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
  
        // 进行解密校检  
        for (int i = 0; i < md5Hash.length; i++) {  
            if (md5Hash[i] != temp[i]) {  
                // System.out.println(md5Hash[i] + "MD5校验错误。" + temp[i]);  
                throw new Exception("MD5校验错误。");  
            }  
        }  
  
        // 返回解密后的数组，其中前16位MD5Hash码要除去。  
        return new String(temp, 16, temp.length - 16, "utf-8");  
    }  
  
    /** 
     * <li> 
     * 方法名称:TripleDES_CBC_Encrypt</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * 经过封装的三重DES/CBC加密算法，如果包含中文，请注意编码。 
     * </pre> 
     *  
     * </li> 
     *  
     * @param sourceBuf 
     *            需要加密内容的字节数组。 
     * @param deskey 
     *            KEY 由24位字节数组通过SecretKeySpec类转换而成。 
     * @param ivParam 
     *            IV偏转向量，由8位字节数组通过IvParameterSpec类转换而成。 
     * @return 加密后的字节数组 
     * @throws Exception 
     */  
    public static byte[] TripleDES_CBC_Encrypt(byte[] sourceBuf,  
            SecretKeySpec deskey, IvParameterSpec ivParam) throws Exception {  
        byte[] cipherByte;  
        // 使用DES对称加密算法的CBC模式加密  
        Cipher encrypt = Cipher.getInstance("TripleDES/CBC/PKCS5Padding");  
  
        encrypt.init(Cipher.ENCRYPT_MODE, deskey, ivParam);  
  
        cipherByte = encrypt.doFinal(sourceBuf, 0, sourceBuf.length);  
        // 返回加密后的字节数组  
        return cipherByte;  
    }  
  
    /** 
     * <li> 
     * 方法名称:TripleDES_CBC_Decrypt</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * 经过封装的三重DES / CBC解密算法 
     * </pre> 
     *  
     * </li> 
     *  
     * @param sourceBuf 
     *            需要解密内容的字节数组 
     * @param deskey 
     *            KEY 由24位字节数组通过SecretKeySpec类转换而成。 
     * @param ivParam 
     *            IV偏转向量，由6位字节数组通过IvParameterSpec类转换而成。 
     * @return 解密后的字节数组 
     * @throws Exception 
     */  
    public static byte[] TripleDES_CBC_Decrypt(byte[] sourceBuf,  
            SecretKeySpec deskey, IvParameterSpec ivParam) throws Exception {  
  
        byte[] cipherByte;  
        // 获得Cipher实例，使用CBC模式。  
        Cipher decrypt = Cipher.getInstance("TripleDES/CBC/PKCS5Padding");  
        // 初始化加密实例，定义为解密功能，并传入密钥，偏转向量  
        decrypt.init(Cipher.DECRYPT_MODE, deskey, ivParam);  
  
        cipherByte = decrypt.doFinal(sourceBuf, 0, sourceBuf.length);  
        // 返回解密后的字节数组  
        return cipherByte;  
    }  
  
    /** 
     * <li> 
     * 方法名称:DES_CBC_Encrypt</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * 经过封装的DES/CBC加密算法，如果包含中文，请注意编码。 
     * </pre> 
     *  
     * </li> 
     *  
     * @param sourceBuf 
     *            需要加密内容的字节数组。 
     * @param deskey 
     *            KEY 由8位字节数组通过SecretKeySpec类转换而成。 
     * @param ivParam 
     *            IV偏转向量，由8位字节数组通过IvParameterSpec类转换而成。 
     * @return 加密后的字节数组 
     * @throws Exception 
     */  
    public static byte[] DES_CBC_Encrypt(byte[] sourceBuf,  
            SecretKeySpec deskey, IvParameterSpec ivParam) throws Exception {  
        byte[] cipherByte;  
        // 使用DES对称加密算法的CBC模式加密  
        Cipher encrypt = Cipher.getInstance("DES/CBC/PKCS5Padding");  
  
        encrypt.init(Cipher.ENCRYPT_MODE, deskey, ivParam);  
  
        cipherByte = encrypt.doFinal(sourceBuf, 0, sourceBuf.length);  
        // 返回加密后的字节数组  
        return cipherByte;  
    }  
  
    /** 
     * <li> 
     * 方法名称:DES_CBC_Decrypt</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * 经过封装的DES/CBC解密算法。 
     * </pre> 
     *  
     * </li> 
     *  
     * @param sourceBuf 
     *            需要解密内容的字节数组 
     * @param deskey 
     *            KEY 由8位字节数组通过SecretKeySpec类转换而成。 
     * @param ivParam 
     *            IV偏转向量，由6位字节数组通过IvParameterSpec类转换而成。 
     * @return 解密后的字节数组 
     * @throws Exception 
     */  
    public static byte[] DES_CBC_Decrypt(byte[] sourceBuf,  
            SecretKeySpec deskey, IvParameterSpec ivParam) throws Exception {  
  
        byte[] cipherByte;  
        // 获得Cipher实例，使用CBC模式。  
        Cipher decrypt = Cipher.getInstance("DES/CBC/PKCS5Padding");  
        // 初始化加密实例，定义为解密功能，并传入密钥，偏转向量  
        decrypt.init(Cipher.DECRYPT_MODE, deskey, ivParam);  
  
        cipherByte = decrypt.doFinal(sourceBuf, 0, sourceBuf.length);  
        // 返回解密后的字节数组  
        return cipherByte;  
    }  
  
    /** 
     * <li> 
     * 方法名称:MD5Hash</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * MD5，进行了简单的封装，以适用于加，解密字符串的校验。 
     * </pre> 
     *  
     * </li> 
     *  
     * @param buf 
     *            需要MD5加密字节数组。 
     * @param offset 
     *            加密数据起始位置。 
     * @param length 
     *            需要加密的数组长度。 
     * @return 
     * @throws Exception 
     */  
    public static byte[] MD5Hash(byte[] buf, int offset, int length)  
            throws Exception {  
        MessageDigest md = MessageDigest.getInstance("MD5");  
        md.update(buf, offset, length);  
        return md.digest();  
    }  
  
    /** 
     * <li> 
     * 方法名称:byte2hex</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * 字节数组转换为二行制表示 
     * </pre> 
     *  
     * </li> 
     *  
     * @param inStr 
     *            需要转换字节数组。 
     * @return 字节数组的二进制表示。 
     */  
    public static String byte2hex(byte[] inStr) {  
        String stmp;  
        StringBuffer out = new StringBuffer(inStr.length * 2);  
  
        for (int n = 0; n < inStr.length; n++) {  
            // 字节做"与"运算，去除高位置字节 11111111  
            stmp = Integer.toHexString(inStr[n] & 0xFF);  
            if (stmp.length() == 1) {  
                // 如果是0至F的单位字符串，则添加0  
                out.append("0" + stmp);  
            } else {  
                out.append(stmp);  
            }  
        }  
        return out.toString();  
    }  
  
    /** 
     * <li> 
     * 方法名称:addMD5</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     * MD校验码 组合方法，前16位放MD5Hash码。 把MD5验证码byte[]，加密内容byte[]组合的方法。 
     * </pre> 
     *  
     * </li> 
     *  
     * @param md5Byte 
     *            加密内容的MD5Hash字节数组。 
     * @param bodyByte 
     *            加密内容字节数组 
     * @return 组合后的字节数组，比加密内容长16个字节。 
     */  
    public static byte[] addMD5(byte[] md5Byte, byte[] bodyByte) {  
        int length = bodyByte.length + md5Byte.length;  
        byte[] resutlByte = new byte[length];  
  
        // 前16位放MD5Hash码  
        for (int i = 0; i < length; i++) {  
            if (i < md5Byte.length) {  
                resutlByte[i] = md5Byte[i];  
            } else {  
                resutlByte[i] = bodyByte[i - md5Byte.length];  
            }  
        }  
  
        return resutlByte;  
    }  
  
    /** 
     * <li> 
     * 方法名称:getKeyIV</li> <li> 
     * 功能描述: 
     *  
     * <pre> 
     *  
     * </pre> 
     * </li> 
     *  
     * @param encryptKey 
     * @param key 
     * @param iv 
     */  
    public static void getKeyIV(String encryptKey, byte[] key, byte[] iv) {  
        // 密钥Base64解密  
        BASE64Decoder decoder = new BASE64Decoder();  
        byte[] buf = null;  
        try {  
            buf = decoder.decodeBuffer(encryptKey);  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
        // 前8位为key  
        int i;  
        for (i = 0; i < key.length; i++) {  
            key[i] = buf[i];  
        }  
        // 后8位为iv向量  
        for (i = 0; i < iv.length; i++) {  
            iv[i] = buf[i + 8];  
        }  
    }  
      
    public static void main(String[] args) throws Exception {  
        System.out.println(encrypt("欧长璐","LmMGStGtOpF4xNyvYt54EQ=="));  
        System.err.println(decrypt("BYyD3pQ9rYonhg9bbbXp3UzZYMGkgmJt8G9NIg1EZ3I=","LmMGStGtOpF4xNyvYt54EQ=="));
    }  
}
EncryptUtil DES、MD5 加密工具类
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@  taglib  uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
       值：${ad}  
</body>
</html>
index.jsp
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd">


    <bean id="stringConverter"
        class="org.springframework.http.converter.StringHttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <value>text/plain;charset=UTF-8</value>
            </list>
        </property>
    </bean>
    <bean id="jsonConverter"
        class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>

    <bean
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
                <ref bean="stringConverter" />
                <ref bean="jsonConverter" />
            </list>
        </property>
    </bean>


    <!-- 1.springMVC上传文件时，需要配置CommonsMultipartResolver处理器 -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 设置默认的编码格式 -->
        <property name="defaultEncoding" value="UTF-8" />
        <property name="maxInMemorySize" value="10240" /> <!-- 最大内存大小 (10240) -->
        <property name="uploadTempDir" value="/upload/" /> <!-- 上传后的目录名 (WebUtils#TEMP_DIR_CONTEXT_ATTRIBUTE) -->
        <!-- 指定所上传文件的总的大小不能超过200kb， 注意maxUploadSize属性点 限制 不是针对单个文件， 而是所有文件的容量总和 -->
        <property name="maxUploadSize" value="-1" /><!-- 最大文件大小，-1为无限止(-1) -->
    </bean>
    <!-- 2.springMVC在超出上传文件限制时，会抛出 org.springframework.web.multipart.MaxUploadSizeExceededException 
        该异常时SpringMVC在检查上传文件信息时抛出来的，而且此时还没有进入到Controller方法中 -->
    <bean id="exceptionResolver"
        class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        <property name="exceptionMappings">
            <props>
                <!-- 在遇到MaxUploadSizeExceededException异常时，自动跳到xxx面 -->
                <prop
                    key="org.springframework.web.multipart.MaxUploadSizeExceededException">error.jsp</prop>
            </props>
        </property>
    </bean>



    <context:component-scan base-package="com.zhouwuji.controller"></context:component-scan>
</beans>
springmvc-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
   <filter>
      <filter-name>encoding</filter-name>
      <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>    
      <init-param>
        <param-name>encoding</param-name>
        <param-value>UTF-8</param-value>
      </init-param>
    </filter>
    <filter-mapping>
      <filter-name>encoding</filter-name>
      <url-pattern>/*</url-pattern>
    </filter-mapping>
   
   <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
   
   <welcome-file-list>
           <welcome-file>index.jsp</welcome-file>
   </welcome-file-list>
</web-app>
web.xml
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  
  <body>
   文件上传异常
  </body>
</html>
error.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  
  <body>
   文件上传失败
  </body>
</html>
fail.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@  taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
    <center>
        <form action="<%=basePath%>upload.do" method="post"
            enctype="multipart/form-data">
            <input type="hidden" name="holly" value="holly" /> 上传文件:<input
                type="file" name="uploadfile"> <input type="submit"
                value="上传">
        </form>
        <button id="btn" type="button">Click Me!</button>
        <table width="80%" align="center">
            <tr>
                <td>编号</td>
                <td>姓名</td>
                <td>性别</td>
            </tr>
            <tbody id="content">
            </tbody>
        </table>
    </center>
</body>
<script src="js/jquery-1.8.3.js" type="text/javascript"></script>
<script type="text/javascript">
    $(function() {
        $("#btn").click(
                function() {
                    $.post("json.do", function(data) {
                        var html = "";
                        for (var i = 0; i < data.length; i++) {
                            html += "<tr><td>" + data[i].id + "</td><td>"
                                    + data[i].name + "</td><td>" + data[i].sex
                                    + "</td></tr>";
                        }
                        ;
                        $("#content").html(html);
                    });
                });
    });
</script>
</html>
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  
  <body>
   文件上传成功
  </body>
</html>
success.jsp
<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.zhouwuji.wuji</groupId>
    <artifactId>project</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/jstl/jstl -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.5.4</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.5.4</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.5.4</version>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.2.2</version>
        </dependency>

    </dependencies>


</project>
pom.xml
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原文地址：https://www.cnblogs.com/ou-pc/p/8241771.html