struts1.x+spring的文件上传和下载的实现-白红宇

struts1.x+spring的文件上传和下载的实现

阅读量：4970 次

发布时间：2019-06-12

本文共 4949 字，大约阅读时间需要 16 分钟。

项目需要在struts1.x+spring2.5环境下实现上传下载模块。现总结如下：

前台页面

在jsp页面中添加

注意：数据一定要以enctype="multipart/form-data" 形式提交上去

配置web.xml

1 
      2 
     
       6  7     
      
       HelloApp
       8  9     
      
       10         
       
        upload.jsp
       11     
      12     
      13     
      
       14         
       
        org.springframework.web.context.ContextLoaderListener
       15     
      16     
      17     
      18     
      
       19         
       
        action
       20         
       
        org.apache.struts.action.ActionServlet
       21         
       
        22             
        
         config
        23             
        
         /WEB-INF/struts-config.xml
        24         
       25         
       
        2
       26     
      27 28     
      
       29         
       
        action
       30         
       
        *.do
       31     
      32     
      33     34     
      35     
      
       36         
       
        FilterChar
       37         
       
        38              com.fileupload.FilterChar39         
       40         
       
        41               
        
         chars
        42               
        
         utf-8
        43         
       44       
      45   
      
       46         
       
        FilterChar
       47         
       
        /*
       48   
      49   50   
      51 52

配置Struts-Config.xml

配置applicationContext.xml

FilterChar.java 过滤乱码的类，可以通过其他方式解决乱码

1 package com.fileupload; 2  3 import java.io.IOException; 4  5 import javax.servlet.Filter; 6 import javax.servlet.FilterChain; 7 import javax.servlet.FilterConfig; 8 import javax.servlet.ServletException; 9 import javax.servlet.ServletRequest;10 import javax.servlet.ServletResponse;11 import javax.servlet.http.HttpServletRequest;12 import javax.servlet.http.HttpServletResponse;13 14 /**15  * 以 UTF-8 输入输出16  * 17  * @author admin18  * 19  */20 public class FilterChar implements Filter {21 22     private String config;23 24     public void destroy() {25         this.config = null;26     }27 28     /**29      * name="FilterChar" 
30      * init-param name="config" value="utf-8"
31      * mapping url-pattern="/*"
32      */33     public void doFilter(ServletRequest request, ServletResponse response,34             FilterChain chain) throws IOException, ServletException {35         HttpServletRequest req;36         req = (HttpServletRequest) request;37 38         HttpServletResponse res;39         res = (HttpServletResponse) response;40 41         req.setCharacterEncoding(config);42         res.setCharacterEncoding(config);43         chain.doFilter(req, res);44 45     }46 47     /**48      * 获得web.xml中初始化的参数49      */50     public void init(FilterConfig config) throws ServletException {51         this.config = config.getInitParameter("chars");52     }53 54 }

UploadAction.java

1 package com.fileupload; 2  3 import java.io.FileOutputStream; 4  5 import javax.servlet.http.HttpServletRequest; 6 import javax.servlet.http.HttpServletResponse; 7  8 import org.apache.struts.action.Action; 9 import org.apache.struts.action.ActionForm;10 import org.apache.struts.action.ActionForward;11 import org.apache.struts.action.ActionMapping;12 import org.apache.struts.upload.FormFile;13 14 public class UpLoadAction extends Action {15     @Override16     public ActionForward execute(ActionMapping mapping, ActionForm form,17             HttpServletRequest request, HttpServletResponse response)18             throws Exception {19         UpLoadActionForm myForm = (UpLoadActionForm) form;20 21         FormFile file = myForm.getMyFile();22         System.err.println("fileSize:" + file.getFileSize());23         // 待添加过滤请求24         if (file.getFileSize() > 1024) {25 26         }27 28         FileOutputStream out = new FileOutputStream("e:\\" + file.getFileName());29 30         out.write(file.getFileData());31 32         out.flush();33         out.close();34 35         return mapping.findForward("success");36 37     }38 }

UploadActionForm.java表单的bean对象

1 package com.fileupload; 2  3 import org.apache.struts.action.ActionForm; 4 import org.apache.struts.upload.FormFile; 5  6 public class UpLoadActionForm extends ActionForm 7 { 8     private String name; 9     private FormFile myFile;10 11     public FormFile getMyFile()12     {13         return myFile;14     }15 16     public void setMyFile(FormFile myFile)17     {18         this.myFile = myFile;19     }20 21     public String getName()22     {23         return name;24     }25 26     public void setName(String name)27     {28         this.name = name;29     }30 31 }