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在开发当中,调接口的时候发生如下报错。
No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘http://localhost:8080’ is therefore not allowed access.
这种其实是跨域问题。
解决办法:
java代码:
@RequestMapping(value = "/video/{urlName}")
public String playVideo(HttpServletRequest req, @PathVariable String urlName){
Map<String,Object> map = new HashMap<String,Object>();
String theName = "处理。。。";
map.put("theName ",theName );
String callback = req.getParameter("callback");
// Gson go =new Gson();
Gson go =new GsonBuilder().disableHtmlEscaping().create();
String json = go.toJson(map);
return callback+"("+json+")";
}
js代码
$(function(){
$.ajax({
url: 'http://192.166.11.9:8389/video/e66801-435-4fdf-9589-395c450085f9',
type: 'post',
dataType:'jsonp',
jsonp: "callback",
success:function(data){
console.log(data.theName );
},
error:function(data){
console.log(data)
}
});
})
控制台输出想要内容,成功