struts2实现文件上传 代码

public class FileUpLoad  extends ActionSupport{

//"多文件上传就用list就可以了private List<File> file;"
private File file;
//上传文本的name

public File getFile() {

return file;

}

public void setFile(File file) {

this.file = file;

}

private String fileContentType;
//上传的文件类型。

public String getFileContentType() {

return fileContentType;

}

public void setFileContentType(String fileContentType) {

this.fileContentType = fileContentType;
}

//获取上传文件的名称
private String fileFileName;

public String getFileFileName() {

return fileFileName;

}

public void setFileFileName(String fileFileName) {

this.fileFileName = fileFileName;

}

public String upload() throws Exception

{
//获取文件上传路径
String root=ServletActionContext.getRequest().getRealPath("/upload");

InputStream is=new FileInputStream(file);

String.substring(fileFileName.indexOf("."));//截取上传文件的后缀。便于新定义名称。.jpg

System.out.println(name);

File descFile=new File(root,新定义的文件名称+fileFileName.indexOf("."));

OutputStream os=new FileOutputStream(descFile);

byte[] buffer=new byte[1024];
int length=0;

while(-1!=(length=(is.read(buffer))))

{

os.write(buffer, 0, length);

}

is.close();

os.close();

return SUCCESS;

}

}