学步园

中文乱码问题，解决办法其实很简单，传之前encode，传之后decode。看相关源码片段：

servlet

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("UTF-8");
		PrintWriter pw = response.getWriter();
		String userId = request.getParameter("userId");
		String vcard = VcardHandle.queryVcard(userId);
		pw.print(URLEncoder.encode(vcard, "UTF-8"));
		pw.close();
	}

JavaScript

	$.ajax({
		type : "POST",
		contentType : "application/x-www-form-urlencoded; charset=utf-8",
		async : false,
		url : "VcardServlet?userId=" + userId,
		dataType : 'text',
		success : function(result) {
			vcard = decodeURIComponent(result);
		}
	});

需要注意的是：JavaScript中encodeURI 不对下列字符进行编码：“:”、“/”、“;”和“?”，建议使用encodeURIComponent 

dml@2013.1.8