struts2中文件上传

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

 package cn.itcast.action;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileNotFoundException;

 import java.io.FileOutputStream;

 import java.io.InputStream;

 import java.io.OutputStream;

 import java.io.Serializable;

 import javax.servlet.ServletContext;

 import org.apache.commons.io.FileUtils;

 import org.apache.struts2.ServletActionContext;

 import com.opensymphony.xwork2.ActionContext;

 import com.opensymphony.xwork2.ActionSupport;

 public class UploadAction1 extends ActionSupport implements Serializable {

     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

     public File getImage() {

         return image;

     }

     public void setImage(File image) {

         this.image = image;

     }

     public String getImageFileName() {

         return imageFileName;

     }

     public void setImageFileName(String imageFileName) {

         this.imageFileName = imageFileName;

     }

     public String getImageContentType() {

         return imageContentType;

     }

     public void setImageContentType(String imageContentType) {

         this.imageContentType = imageContentType;

     }

     public String execute(){

         System.out.println(imageContentType);

         try {

             //处理实际的上传代码

             //找到存储文件的真实路径

 //        System.out.println(imageFileName);

             ServletContext sc = ServletActionContext.getServletContext();

             String storePath = sc.getRealPath("/files");

             //构建输入输出流

 //            OutputStream out = new FileOutputStream(storePath+"\\"+imageFileName);

 //            InputStream in = new FileInputStream(image);

 //            byte b[] = new byte[1024];

 //            int len = -1;

 //            while((len=in.read(b))!=-1){

 //                out.write(b, 0, len);

 //            }

 //            out.close();

 //            in.close();

             FileUtils.copyFile(image, new File(storePath,imageFileName));

             ActionContext.getContext().put("message", "上传成功！");

             return SUCCESS;

         } catch (Exception e) {

             e.printStackTrace();

             return ERROR;

         }

     }

 }

jsp中

   <body>

     <form action="${pageContext.request.contextPath}/upload/upload1.action" method="post" enctype="multipart/form-data">

         文件：<input type="file" name="image"/><br/>

         <input type="submit" value="上传"/>

     </form>

   </body>

多个文件上传

 package cn.itcast.action;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileNotFoundException;

 import java.io.FileOutputStream;

 import java.io.InputStream;

 import java.io.OutputStream;

 import java.io.Serializable;

 import javax.servlet.ServletContext;

 import org.apache.commons.io.FileUtils;

 import org.apache.struts2.ServletActionContext;

 import com.opensymphony.xwork2.ActionContext;

 import com.opensymphony.xwork2.ActionSupport;

 public class UploadAction2 extends ActionSupport implements Serializable {

     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

     private String[] imagesFileName;//   上传输入域FileName  文件名

     private String[] imagesContentType;// 上传文件的MIME类型

     public File[] getImages() {

         return images;

     }

     public void setImages(File[] images) {

         this.images = images;

     }

     public String[] getImagesFileName() {

         return imagesFileName;

     }

     public void setImagesFileName(String[] imagesFileName) {

         this.imagesFileName = imagesFileName;

     }

     public String[] getImagesContentType() {

         return imagesContentType;

     }

     public void setImagesContentType(String[] imagesContentType) {

         this.imagesContentType = imagesContentType;

     }

     public String execute(){

         try {

             if(images!=null&&images.length>0){

                 ServletContext sc = ServletActionContext.getServletContext();

                 String storePath = sc.getRealPath("/files");

                 for(int i=0;i<images.length;i++)

                     FileUtils.copyFile(images[i], new File(storePath,imagesFileName[i]));

             }

             ActionContext.getContext().put("message", "上传成功！");

             return SUCCESS;

         } catch (Exception e) {

             e.printStackTrace();

             return ERROR;

         }

     }

 }

jsp中

   <body>

     <form action="${pageContext.request.contextPath}/upload/upload2.action" method="post" enctype="multipart/form-data">

         文件1：<input type="file" name="images"/><br/>

         文件2：<input type="file" name="images"/><br/>

         <input type="submit" value="上传"/>

     </form>

   </body>

struts.xml中配置

设置文件上传大小

     <constant name="struts.multipart.maxSize" value="52428800"></constant>

     <package name="upload" namespace="/upload" extends="mypackage">

         <action name="upload1" class="cn.itcast.action.UploadAction1" method="execute">

             <result name="success">/success.jsp</result>

         </action>

         <action name="upload2" class="cn.itcast.action.UploadAction2" method="execute">

             <result name="success">/success.jsp</result>

         </action>

     </package>

巴特西

struts2中文件上传

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