struts2实现文件上传

第一步：编写jsp页面

<td> <input type="text" name="address" id="ftext" readonly > <input type="button" onclick="felement.click()" value="上传" > <input type="file"" name="upload" id="felement" style="opacity: 0" onchange="ftext.value=this.value; "> </td>

第二步：配置struts.xml

<package name="action"  extends="struts-default"><action name="InsertPic" class="MyPicAction.AddMyPicAction"><result name="input">/error.jsp</result><result name="success">/Succeed.jsp</result></action></package>

第三步：编写action

 

package MyPicAction;import java.io.File;import javax.servlet.ServletContext;import org.apache.commons.io.FileUtils;import org.apache.struts2.util.ServletContextAware;import pojo.Mypic;import UserDao.DBManagement;import com.opensymphony.xwork2.ActionSupport;public class AddMyPicAction extends ActionSupport implementsServletContextAware{//实现这个接口，对context进行传值private ServletContext context; private String picName;//表单传递的值private String style;//表单传递的值private File upload;// 实际上传文件          private String uploadContentType; // 文件的内容类型          private String uploadFileName; // 上传文件名public File getUpload() {return upload;}public void setUpload(File upload) {this.upload = upload;}public String getUploadContentType() {return uploadContentType;}public void setUploadContentType(String uploadContentType) {this.uploadContentType = uploadContentType;}public String getUploadFileName() {return uploadFileName;}public void setUploadFileName(String uploadFileName) {this.uploadFileName = uploadFileName;}public String getPicName() {return picName;}public void setPicName(String picName) {this.picName = picName;}public String getStyle() {return style;}public void setStyle(String style) {this.style = style;}@Overridepublic String execute() throws Exception {String targetDirectory="";String filename = uploadFileName; try {                        targetDirectory = context.getRealPath("/upload");            String targetFileName = uploadFileName;            File target = new File(targetDirectory, targetFileName);            FileUtils.copyFile(upload, target);                                    setUploadFileName(target.getPath());//保存文件的存放路径        } catch (Exception e) {            addActionError(e.getMessage());            return INPUT;        }        System.out.println(uploadFileName);        DBManagement db = new DBManagement();   Mypic mypic = new Mypic();   mypic.setAddress("./upload/"+filename);   mypic.setName(picName);   mypic.setFlag(style);if(db.InsertPic(mypic)){return SUCCESS;}else{return ERROR;}}public void setServletContext(ServletContext context) {this.context = context;}}

此时文件已经上传至./upload/***中了