struts2文件下载，中文名称乱码

解决办法：

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1.Struts.xml文件中配置如下，红线部分重要点，特别是字符集的设置：

<result name="export" type="stream">
?????????????? <param name="inputName">downloadFile</param>
?????????????? <param name="contentDisposition">attachment;filename="${downloadFileName}"</param>
?????????????? <param name="contentType">application/octet-stream;charset=ISO8859-1</param>
?????????????? <param name="bufferSize">4096</param>
</result>

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2.action中设置下载文件的名称

public void setDownloadFileName(String downloadFileName) {
??try {
???this.downloadFileName = new String(downloadFileName.getBytes(),"ISO8859-1");
??} catch (UnsupportedEncodingException e) {
???// TODO Auto-generated catch block
???e.printStackTrace();
??}
?}