struts2 文件下载 cpu 占用 100%,求解决方案

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struts2 文件下载 cpu 占用 100%,求解决方案5

xml

	<action name="L_download" class="cnydlanFileAction" method="download">
			<result name="success" type="stream">
				<param name="contentType">application/octet-stream;charset=ISO8859-1</param>
				<param name="inputName">inputStream</param>
				<param name="contentDisposition">attachment;filename="${downloadFileName}"</param>
				<param name="bufferSize">4096</param>
			</result>
		</action>

action

	/**
	 * 处理中文下载名
	 * @throws Exception 
	 * 
	 */
	public String getDownloadFileName() throws Exception {
		String named = new String(name.getBytes(), "ISO8859-1");
		if (zipName1.length() > 0){
			named = new String(zipName1.getBytes(), "ISO8859-1");
		}
		return named;
	}

	/**
	 * 获得文件下载流
	 */
	public InputStream getInputStream() throws Exception { 
		HttpServletRequest actionRequest = ServletActionContext.getRequest();
		Map session = (Map)ActionContext.getContext().getSession();
		String[] tt = getPaths();
		if (tt != null && tt.length > 0){
			this.paths = URLDecoder.decode(tt[0], "UTF-8").split(",");
			compressionFilesToTemparayPackage();
			String path1 = "";
		    path1 = getTempPath() + zipName1;
			deleteZipFiles();
			InputStream in = new FileInputStream(path1); 
			return in;
		} else {
			logger.info("IP: " + actionRequest.getRemoteAddr() + " 开始下载文件" + name + " time: " + getTime());
			String path1 = "";
			String temproot = path;
			String para1 = getRoot();
			if (temproot.equals("*") == false){
				path1 = getRoot() + temproot + "\\" + name;
				para1 = getRoot() + temproot;
			} else { path1 = getRoot() + "\\" + name;}
			para1 = path1; //getFullPathSetDataBase(para1, name);
			markDownLoadInfo(para1, name);
			InputStream in = new FileInputStream(path1); 
			logger.info("IP: " + actionRequest.getRemoteAddr() + " 结束下载文件" + MyUtils.URLDecoder(name) + " time: " + getTime());
			return in;
		}
	}

	/**
	 * 下载文件
	 */
	public String download() {
		return SUCCESS;
	}

下载附件

2013年5月31日 12:18

TreasureNow
1
0 0 7

1个答案按时间排序按投票排序

0 0

采纳的答案

struts2的download是不会造成CPU负载过高的，你的代码中，有好几个方法：分别是压缩存放到临时文件夹（compressionFilesToTemparayPackage）、删除压缩后的文件（deleteZipFiles）、标记下载信息（markDownLoadInfo）。我建议你可以把这三个方法先去掉，然后逐个方法加入调试。这是个小问题，试试吧！

2013年5月31日 18:14

freezingsky
159
1 1 16