servlet中写js时出现乱码
我这个是一个登陆页面，如果输入的验证码有误，就用js弹出个提示框“验证码有误”，刚开始，用来很多编码，中文全是？？？。原来是少了一个response.setCharacterEncoding("UTF-8");，当然utf-8可以换成别的。response.setContentType("text/html;UTF-8");
response.setCharacterEncoding("UTF-8"); //刚开始就是少了这个
PrintWriter out = response.getWriter();
String validateCode = request.getParameter("validateCode");
String rightCode = (String) request.getSession().getAttribute("validateCode");
if(!validateCode.equalsIgnoreCase(rightCode)){
out.println("<script language='javascript'>");
out.println("alert('验证码有误!')");
out.println("javascript:history.go(-1);");
out.println("</script>");
System.out.println("验证码有误!");
}
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