java文件上传

package com.search.action.web;

import java.io.*;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class UploadAction extends ActionSupport {

private static final int BUFFER_SIZE = 16 * 1024;
// 文件标题
private String title;
// 上传文件域对象
private File upload;
// 上传文件名
private String uploadFileName;
// 上传文件类型
private String uploadContentType;
// 保存文件的目录路径(通过依赖注入)
private String savePath;

// 自己封装的一个把源文件对象复制成目标文件对象
private static void copy(File src, File dst) {
InputStream in = null;
OutputStream out = null;
try {
in = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE);
out = new BufferedOutputStream(new FileOutputStream(dst),
BUFFER_SIZE);
byte[] buffer = new byte[BUFFER_SIZE];
int len = 0;
while ((len = in.read(buffer)) > 0) {
out.write(buffer, 0, len);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != in) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != out) {
try {
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

@Override
public String execute() throws Exception {
System.out.println("aaaaa" + uploadFileName);
System.out.println("bbbbb" + getUploadFileName());
// 根据服务器的文件保存地址和原文件名创建目录文件全路径
String dstPath = ServletActionContext.getServletContext().getRealPath(
this.getSavePath())
+ "\\" + this.getUploadFileName();
System.out.println("dstPath" + dstPath);

System.out.println("上传的文件的类型：" + this.getUploadContentType());

File dstFile = new File(dstPath);
copy(this.upload, dstFile);
System.out.println("==========");
return "execute";
}

public String getTitle() {
return title;
}

public void setTitle(String title) {
this.title = title;
}

public File getUpload() {
return upload;
}

public void setUpload(File upload) {
this.upload = upload;
}

public String getUploadFileName() {
return uploadFileName;
}

public void setUploadFileName(String uploadFileName) {
this.uploadFileName = uploadFileName;
}

public String getUploadContentType() {
return uploadContentType;
}

public void setUploadContentType(String uploadContentType) {
this.uploadContentType = uploadContentType;
}

public String getSavePath() {
return savePath;
}

public void setSavePath(String savePath) {
this.savePath = savePath;
}














package com.bean;

import java.io.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.ServletInputStream;

public class UpBean {
public void doUpload(HttpServletRequest request) throws IOException {
PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(
"test.txt")));
ServletInputStream in = request.getInputStream();
int i = in.read();
while (i != -1) {
pw.print((char) i);
i = in.read();
}
pw.close();
}
}




我写的是进入Action里面.去执行上传操作.