jsp:

<a href="testDownloadFiles!xiazai.action?fileName=aaa.rar">不帶中文名的文件</a><br> <a href="testDownloadFiles!xiazai.action?fileName=<%=java.net.URLEncoder.encode("宜春院.rar","utf-8").toString().replace("%","_") %>">下載帶中文的文件</a>
配置文件struts.xml

<package name="sk-default" extends="struts-default,json-default"> <action name="testDownloadFiles" class="com.TestDownloadFiles"> <result name = "input" type="stream"><param name="inputName">downloadFile</param><param name="bufferSize">1024</param><param name="contentDisposition">attachment;filename="${fileName}"</param></result></action></package>
java:

private String fileName;public String getFileName() {return fileName;}public void setFileName(String fileName) {this.fileName = fileName;}//下載public String xiazai(){System.out.println("執行下載");return "input";}//配置文件中對應的屬性<param name="inputName">downloadFile</param> public InputStream getDownloadFile() throws UnsupportedEncodingException, FileNotFoundException{fileName = fileName.replace("_","%");fileName = java.net.URLDecoder.decode(fileName,"utf-8");System.out.println("轉碼前:"+fileName);response.setContentType("application/x-msdownload");FileInputStream fileInputStream = new FileInputStream(new File(ServletActionContext.getServletContext().getRealPath("")+"\\"+fileName));//文件物理盤位置fileName = new String(fileName.getBytes("GBK"),"iso-8859-1");System.out.println("下載文件名(轉碼后):"+fileName);//response.setHeader("Content-disposition","attachment;filename="+fileName);return fileInputStream;}}

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