关于在struts2的文件简单上传

最新推荐文章于 2024-11-15 17:06:32 发布

zhouyu5241

最新推荐文章于 2024-11-15 17:06:32 发布

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CC 4.0 BY-SA版权

文章标签： struts string file buffer exception action

本文链接：https://blog.youkuaiyun.com/zhouyu5241/article/details/2904410

本文介绍了一个使用Struts2框架实现文件上传的具体示例，包括上传表单的构建、配置文件设置以及核心的上传Action类实现。通过此示例可以了解如何利用Struts2进行文件上传操作。

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1 <form action="upload.action" method="post" enctype="multipart/form-data">

上传所需要的jar包：
commons-logging-1.1.jar
freemarker-2.3.8.jar
ognl-2.6.11.jar
struts2-core-2.0.6.jar
xwork-2.0.1.jar
commons-io-1.3.1.jar
commons-fileupload-1.2.jar

2 <action name="upload" class="obt.net.action.UploadAction">
<result name="success">/success4.jsp</result>
</action>

3 import com.opensymphony.xwork2.ActionSupport;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class UploadAction extends ActionSupport{

private File file;
private String fileFileName;
private String fileContentType;
public File getFile() {
  return file;
}
public void setFile(File file) {
  this.file = file;
}
public String getFileContentType() {
  return fileContentType;
}
public void setFileContentType(String fileContentType) {
  this.fileContentType = fileContentType;
}
public String getFileFileName() {
  return fileFileName;
}
public void setFileFileName(String fileFileName) {
  this.fileFileName = fileFileName;
}

public String execute() throws Exception{

  InputStream is = new FileInputStream(file);
  String root = "d://car/";
  File descfile = new File(root,this.getFileFileName());
  OutputStream os = new FileOutputStream(descfile);

  byte buffer[] = new byte[400];

  int length = 0;

  while((length = is.read(buffer))>0){
   os.write(buffer,0,length);
  }

  is.close();
  os.close();

  return "success";

}

}