java请求跨域问题解决方法

新建Util类，在Util中添加下面方法：

    /*     * response请求跨域公共设置     */    public static HttpServletResponse SetHttpServletResponse(            HttpServletResponse response) {        response.setHeader("Access-Control-Allow-Origin", "*");        response.setHeader("Access-Control-Allow-Methods",                "POST, GET, OPTIONS, DELETE");        response.setHeader("Access-Control-Max-Age", "3600");        response.setHeader("Access-Control-Allow-Headers", "x-requested-with");        return response;    }
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在接口处调用此方法：

public String xxx(){    Util.SetHttpServletResponse(response);//解决跨域    ...    return xxx;}
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