注意点

private File image;//对应的就是表单中文件上传的那个输入域的名称，Struts2框架会封装成File类型的     private String imageFileName;//   上传输入域FileName  文件名     private String imageContentType;// 上传文件的MIME类型

单个文件

1 package cn.itcast.action; 2  3 import java.io.File; 4 import java.io.FileInputStream; 5 import java.io.FileNotFoundException; 6 import java.io.FileOutputStream; 7 import java.io.InputStream; 8 import java.io.OutputStream; 9 import java.io.Serializable;10 11 import javax.servlet.ServletContext;12 13 import org.apache.commons.io.FileUtils;14 import org.apache.struts2.ServletActionContext;15 16 import com.opensymphony.xwork2.ActionContext;17 import com.opensymphony.xwork2.ActionSupport;18 19 public class UploadAction1 extends ActionSupport implements Serializable {20     21     private File image;//对应的就是表单中文件上传的那个输入域的名称，Struts2框架会封装成File类型的22     private String imageFileName;//   上传输入域FileName  文件名23     private String imageContentType;// 上传文件的MIME类型24     25     public File getImage() {26         return image;27     }28 29 30 31     public void setImage(File image) {32         this.image = image;33     }34 35 36 37     public String getImageFileName() {38         return imageFileName;39     }40 41 42 43     public void setImageFileName(String imageFileName) {44         this.imageFileName = imageFileName;45     }46 47 48 49     public String getImageContentType() {50         return imageContentType;51     }52 53 54 55     public void setImageContentType(String imageContentType) {56         this.imageContentType = imageContentType;57     }58 59 60 61     public String execute(){62         System.out.println(imageContentType);63         try {64             //处理实际的上传代码65             //找到存储文件的真实路径66 //        System.out.println(imageFileName);67             ServletContext sc = ServletActionContext.getServletContext();68             String storePath = sc.getRealPath("/files");69             //构建输入输出流70 //            OutputStream out = new FileOutputStream(storePath+"\\"+imageFileName);71 //            InputStream in = new FileInputStream(image);72 //            byte b[] = new byte[1024];73 //            int len = -1;74 //            while((len=in.read(b))!=-1){75 //                out.write(b, 0, len);76 //            }77 //            out.close();78 //            in.close();79             80             FileUtils.copyFile(image, new File(storePath,imageFileName));81             82             ActionContext.getContext().put("message", "上传成功！");83             return SUCCESS;84         } catch (Exception e) {85             e.printStackTrace();86             return ERROR;87         }88     }89 }

jsp中

1   2     
     
      3         文件：
      
      
4         
      5     
     
6   

 

 

 

多个文件上传

1 package cn.itcast.action; 2  3 import java.io.File; 4 import java.io.FileInputStream; 5 import java.io.FileNotFoundException; 6 import java.io.FileOutputStream; 7 import java.io.InputStream; 8 import java.io.OutputStream; 9 import java.io.Serializable;10 11 import javax.servlet.ServletContext;12 13 import org.apache.commons.io.FileUtils;14 import org.apache.struts2.ServletActionContext;15 16 import com.opensymphony.xwork2.ActionContext;17 import com.opensymphony.xwork2.ActionSupport;18 19 public class UploadAction2 extends ActionSupport implements Serializable {20     21     private File[] images;//对应的就是表单中文件上传的那个输入域的名称，Struts2框架会封装成File类型的22     private String[] imagesFileName;//   上传输入域FileName  文件名23     private String[] imagesContentType;// 上传文件的MIME类型24     25     26 27     public File[] getImages() {28         return images;29     }30 31 32 33     public void setImages(File[] images) {34         this.images = images;35     }36 37 38 39     public String[] getImagesFileName() {40         return imagesFileName;41     }42 43 44 45     public void setImagesFileName(String[] imagesFileName) {46         this.imagesFileName = imagesFileName;47     }48 49 50 51     public String[] getImagesContentType() {52         return imagesContentType;53     }54 55 56 57     public void setImagesContentType(String[] imagesContentType) {58         this.imagesContentType = imagesContentType;59     }60 61 62 63     public String execute(){64         try {65             66             if(images!=null&&images.length>0){67                 ServletContext sc = ServletActionContext.getServletContext();68                 String storePath = sc.getRealPath("/files");69                 for(int i=0;i

jsp中

1   2     
     
      3         文件1：
      
      
4         文件2：
      
      
5         
      6     
     
7   

struts.xml中配置

设置文件上传大小

1     
     

1     
     
      2         
      
       3             
       
        /success.jsp
       4         
      5         
      
       6             
       
        /success.jsp
       7         
      8