data:{id:1, type:encodeURI(encodeURI(‘商品'))}
2.在后台action里要对取得的字符串进行decode
1、String type = request.getParameter(“type”);
2、type = URLDecoder.decode(type, “UTF-8″);
方法二:ajax配置contentType属性,加上charset=UTF-8
在ajax方法中加入以下参数
contentType: “application/x-www-form-urlencoded; charset=UTF-8″使用其它js框架或者xhr都是差不多,设置header中contentType即可,
这里关键是charset=UTF-8,如果没有这个,是不行的,默认jQuery里的contentType是没有的
一、测试环境
jQuery:1.3.2
tomcat:5.5.17
二、测试方法
1.使用get方式
服务器端java代码:
String name = new String(request.getParameter("name").getBytes("iso8859-1"),"utf-8");
客户端js代码:
$.ajax({url: "2.jsp",type: "get",data: {name:"中文"},success: function(response){
alert(response);
}});
结果:正确显示
$.ajax({url: "2.jsp",type: "get",data: "name=中文",success: function(response){
alert(response);
}});
结果:乱码
$.get("2.jsp", { name: "中文" },function(response){
alert(response);
});
结果:正确显示
复制代码
代码如下:
$.get("2.jsp", "name=中文",function(response){
alert(response);
});
结果:乱码
2.post方式
服务器端java代码:
request.setCharacterEncoding("UTF-8");
String name = request.getParameter("name");
客户端js代码:
$.ajax({url: "3.jsp",type: "post",data: "method=testAjaxPost&name=中文",success: function(response){
alert(response);
}});
结果:正确显示
$.ajax({url: "3.jsp",type: "post",data: {name:"中文"},success: function(response){
alert(response);
}});
结果:正确显示
$.post("3.jsp", { name: "中文" },function(response){
alert(response);
});
结果:正确显示
$.post("3.jsp", "name=中文",function(response){
alert(response);
});
结果:正确显示
三、使用filter
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
if (req.getHeader("X-Requested-With") != null && req.getHeader("X-Requested-With").equalsIgnoreCase("XMLHttpRequest")) {
request.setCharacterEncoding("utf-8");
} else {
request.setCharacterEncoding("gbk");
}
chain.doFilter(request, response);
}
jQuery在使用ajax的时候会在header中加入X-Requested-With,值为:XMLHttpRequest,filter中判断是jQuery的ajax请求时就把字符编码设为utf8,这样可以解决post提交中的中文乱码问题,不需要在代码中设置request.setCharacterEncoding("UTF-8");
对于get方式的中文乱码问题,建议不使用get方式提交中文,统统改为post ^-^
为了和prototype.js处理中文的方式一致,可以使用如下的方式,自定义header中的属性RequestType
$.ajax({
url: "3.jsp",
type: "post",
data: {name:"中文"},
beforeSend: function(XMLHttpRequest){
XMLHttpRequest.setRequestHeader("RequestType", "ajax");
alert("开始");
},
success: function(data, textStatus){
alert(data);
},
error: function(XMLHttpRequest, textStatus, errorThrown){
alert("错误:" + textStatus);
},
complete: function(XMLHttpRequest, textStatus){
alert("完成:" + textStatus);
}
});
filter代码如下:
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
if (req.getHeader("RequestType") != null && req.getHeader("RequestType").equalsIgnoreCase("ajax"))) {
request.setCharacterEncoding("utf-8");
} else {
request.setCharacterEncoding("gbk");
}
chain.doFilter(request, response);
}