Extjs4---文件上传，后台struts2
完整代码下载：
http://download.csdn.net/detail/lc448986375/4575723
upload.js:
package action;import java.io.File;import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {//格式必须为"文件名"+FileNameprivate String fileFileName;//必须与前台的name相同才可以接收到private File file;private boolean success;public String upload(){//对文件进行操作，这里只是输出一下文件名System.out.println(fileFileName);success = true;return SUCCESS;}public String getFileFileName() {return fileFileName;}public void setFileFileName(String fileFileName) {this.fileFileName = fileFileName;}public File getFile() {return file;}public void setFile(File file) {this.file = file;}public boolean isSuccess() {return success;}public void setSuccess(boolean success) {this.success = success;}}