struts2 上传和下载的实现
直接贴代码
action类代码：
public class UploadAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
private File file;
private String fileFileName;
private String fileFileType;
@SuppressWarnings("deprecation")
@Override
public String execute() throws Exception {
InputStream is = new FileInputStream(file);
String root = ServletActionContext.getRequest().getRealPath("/upload");
File dest = new File(root, this.getFileFileName());
OutputStream os = new FileOutputStream(dest);
byte[] buf = new byte[400];
while (is.read(buf) > 0) {
os.write(buf, 0, buf.length);
}
os.close();
is.close();
return SUCCESS;
}
public File getFile() {
return file;
}
public void setFile(File file) {
this.file = file;
}
public String getFileFileName() {
return fileFileName;
}
public void setFileFileName(String fileFileName) {
this.fileFileName = fileFileName;
}
public String getFileFileType() {
return fileFileType;
}
public void setFileFileType(String fileFileType) {
this.fileFileType = fileFileType;
}
}
下载的action代码
public class DownloadAction extends ActionSupport{
/**
*
*/
private static final long serialVersionUID = 3057261808976627016L;
@Override
public String execute(){
return SUCCESS;
}
public InputStream getDownloadFile(){
return ServletActionContext.getServletContext().getResourceAsStream("/upload/cc.docx");
}
}
xml主要配置文件如下：
<action name="DownloadAction" type="stream">
<param name="contentType">application/msword</param>
<param name="contentDisposition">attachment;filename="cc.docx"</param>
<param name="inputName">downloadFile</param>
</result>
</action>
<action name="up" class="com.wit.action.UploadAction">
<result>/register.jsp</result>
<result name="input">/login.jsp</result>
<interceptor-ref name="fileUpload">
<!--<param name="maximumSize">1024000</param>
<param name="allowedTypes">image/jpg</param>
--></interceptor-ref>
<interceptor-ref name="defaultStack"/>
</action>
页面上就很简单了不贴了。注意file控件的名字要和action里的属性一样。
