Java中文问题解决合集

解决Struts的DownloadAction的中文文件名的问题，关键就是要正常修改HTTP头啊。 举个例子： package fox.math.kmust.action; import java.io.File; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DownloadAction; import fox.math.kmust.dao.Homework; import fox.math.kmust.dao.HomeworkDao; import fox.math.kmust.dao.HomeworkDaoWithMySQL; public class DownloadHomeworkAction extends DownloadAction { @Override protected StreamInfo getStreamInfo(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { if(request.getSession().getAttribute("id")==null){ return null; } DownloadHomeworkActionForm downloadHomeWorkActionForm = (DownloadHomeworkActionForm) form; HomeworkDao dao = new HomeworkDaoWithMySQL(); long id = Long.parseLong(downloadHomeWorkActionForm.getId()); Homework homework = dao.find(id); if(homework==null){ return null; } String realRoot = request.getSession().getServletContext().getRealPath( "/作业/" + homework.getNumber()); String realPath = realRoot + "/" + homework.getFilename(); File file = new File(realPath); response.setContentType("application/x-msdownload;charset=GBk"); //关键就在这里了 修改了编码头为gbk response.setHeader("Content-Disposition", "attachment; filename=" + new String(homework.getFilename().replace(" ", "").getBytes( "gbk"), "iso-8859-1")); //并且在这里对文件名String进行了转码 final String contentType = "other"; return new FileStreamInfo(contentType, file); } } //最后还要注意的是即使这样修改，我们的文件名还是必须没有空格，否则空格厚的内容将将被忽略。（暂时无法解决，有时间好好研究一下，有解决方案，待续）