struts2文件上传

 

struts配置：

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE struts PUBLIC  
    "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"  
    "http://struts.apache.org/dtds/struts-2.1.7.dtd"> 
<struts> 
   <!-- 上传文件的总开关,配置上传文件的大小,默认值是2M --> 
   <constant name="struts.multipart.maxSize" value="7097152"></constant> 
   <package name="upload" namespace="/upload" extends="struts-default"> 
       <action name="uploadAction_*" class="cn.itcast.upload.UploadAction" method="{1}"> 
          <interceptor-ref name="defaultStack"> 
                <!-- 设置上传文件的参数 这里属于第二开关--> 
                <!-- 设置上传文件的大小,struts2运行时,会调用FileUploadInterceptor中的setMaximumSize(6097152)方法--> 
                <param name="fileUpload.maximumSize">1097152</param> 
                <!-- 设置上传文件的允许类型,struts2运行时,会调用FileUploadInterceptor中的setAllowedTypes(...)方法--> 
                <param name="fileUpload.allowedTypes">application/vnd.ms-excel,application/vnd.ms-powerpoint</param> 
                <!-- 设置上传文件的允许扩展名,struts2运行时,会调用FileUploadInterceptor中的setAllowedExtensions(,,,)方法--> 
                <param name="fileUpload.allowedExtensions">txt,ppt</param> 
          </interceptor-ref> 
            
          <result name="success">/upload/success.jsp</result> 
            
          <!-- input:固定写法,当上传出错时,要转向input所指向的页面 --> 
          <result name="input">/upload/error.jsp</result> 
      </action> 
        
       <action name="uploadsAction_*" class="cn.itcast.upload.UploadsAction" method="{1}"> 
          <result name="success">/upload/success.jsp</result> 
          <!-- input:固定写法,当上传出错时,要转向input所指向的页面 --> 
          <result name="input">/upload/error.jsp</result> 
      </action> 
   </package>   
</struts> 

 单文件上传action：

package cn.itcast.upload;  
 
import java.io.File;  
import java.io.IOException;  
 
import javax.servlet.ServletContext;  
 
import org.apache.commons.io.FileUtils;  
import org.apache.struts2.ServletActionContext;  
 
import com.opensymphony.xwork2.ActionSupport;  
 
@SuppressWarnings("serial")  
public class UploadAction extends ActionSupport {  
      
    //<input type="file" name="uploadImage">,保存上传文件  
    private File uploadImage;  
      
    //文件的类型,定义格式:jsp页面上传的文件名+ContentType,这里是uploadImage+ContentType=uploadImageContentType 
    private String uploadImageContentType;  
      
    //文件的名字:定义格式jsp页面上传的文件名+FileName,这里是uploadImage+FileName=uploadImageFileName 
    private String uploadImageFileName;  
      
    public String saveFile(){  
        System.out.println("xxxxxxxxxx");  
          
        ServletContext sc=ServletActionContext.getServletContext();  
        String realpath=sc.getRealPath("/pic");  
          
        File file=new File(realpath,uploadImageFileName);  
          
        try {  
            FileUtils.copyFile(uploadImage, file);  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
          
        return "success";  
    }  
 
 
 
    public File getUploadImage() {  
        return uploadImage;  
    }  
 
 
 
    public void setUploadImage(File uploadImage) {  
        this.uploadImage = uploadImage;  
    }  
 
 
 
    public String getUploadImageContentType() {  
        return uploadImageContentType;  
    }  
 
 
 
    public void setUploadImageContentType(String uploadImageContentType) {  
        this.uploadImageContentType = uploadImageContentType;  
    }  
 
 
 
    public String getUploadImageFileName() {  
        return uploadImageFileName;  
    }  
 
 
 
    public void setUploadImageFileName(String uploadImageFileName) {  
        this.uploadImageFileName = uploadImageFileName;  
    }  
 
}  

多文件上传action：

package cn.itcast.upload;  
 
import java.io.File;  
import java.io.IOException;  
 
import javax.servlet.ServletContext;  
 
import org.apache.commons.io.FileUtils;  
import org.apache.struts2.ServletActionContext;  
 
import com.opensymphony.xwork2.ActionSupport;  
 
@SuppressWarnings("serial")  
public class UploadsAction extends ActionSupport {  
      
    //<input type="file" name="uploadImage">,保存上传文件  
    private File[] uploadImages;  
      
    //文件的类型,定义格式:jsp页面上传的文件名+ContentType,这里是uploadImage+ContentType=uploadImageContentType 
    private String[] uploadImagesContentType;  
      
    //文件的名字:定义格式jsp页面上传的文件名+FileName,这里是uploadImage+FileName=uploadImageFileName 
    private String[] uploadImagesFileName;  
      
    public String saveFiles(){  
        ServletContext sc=ServletActionContext.getServletContext();  
        String realpath=sc.getRealPath("/pic");  
        try {  
            if(uploadImagesContentType!=null&&uploadImagesContentType.length>0){  
                for(int i=0;i<uploadImagesContentType.length;i++){  
                    File file=new File(realpath,uploadImagesFileName[i]);  
                    FileUtils.copyFile(uploadImages[i], file);  
                 }  
            }  
       } catch (IOException e) {  
            e.printStackTrace();  
       }  
        return "success";  
    }  
 
    public File[] getUploadImages() {  
        return uploadImages;  
    }  
 
    public void setUploadImages(File[] uploadImages) {  
        this.uploadImages = uploadImages;  
    }  
 
    public String[] getUploadImagesContentType() {  
        return uploadImagesContentType;  
    }  
 
    public void setUploadImagesContentType(String[] uploadImagesContentType) {  
        this.uploadImagesContentType = uploadImagesContentType;  
    }  
 
    public String[] getUploadImagesFileName() {  
        return uploadImagesFileName;  
    }  
 
    public void setUploadImagesFileName(String[] uploadImagesFileName) {  
        this.uploadImagesFileName = uploadImagesFileName;  
    }  
 
      
 
 
}