ajax+jquery+struct+ajaxfileupload有增删改功能上传文件例子

package com.demo.struts; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; public class Upload extends ActionSupport { private File upload; private String uploadContentType; private String uploadFileName; private String savePath; 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 getSavePath() { return ServletActionContext.getRequest().getRealPath(savePath); } public void setSavePath(String savePath) { this.savePath = savePath; } @Override public String execute() throws Exception { // TODO Auto-generated method stub System.out.println("-----------------------------------------"); ActionContext ctx=ActionContext.getContext(); savePath="/upload"; System.out.println(savePath); if(upload==null){ System.out.println("upload is null!"); } System.out.println(getSavePath() + "\\"+ getUploadFileName()); FileOutputStream fos = new FileOutputStream(getSavePath() + "\\"+ getUploadFileName()); FileInputStream fis = new FileInputStream(getUpload()); byte[] buffer = new byte[1024]; int length = 0; while ((length = fis.read(buffer)) > 0) { fos.write(buffer, 0, length); } ctx.put("Msg", "上传成功!"); //System.out.println("上传成功!"); return "success"; } }