跨域问题

本文首次发布于My Blog,作者Ian,转载请保留原文链接。

web.xml

<!-- 跨域拦截设置-->
    <filter>
        <filter-name>CorsFilter</filter-name>
        <filter-class>com.java.CorsFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>CorsFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

class：

/**
 *解决跨域
 */
public class CorsFilter extends OncePerRequestFilter {
    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        response.addHeader("Access-Control-Allow-Origin", "*");
        response.addHeader("Access-Control-Allow-Methods",
                "GET, POST, PUT, DELETE, OPTIONS");
        response.addHeader("Access-Control-Allow-Headers",
                "Origin, X-Requested-With, Content-Type, Accept, Connection, User-Agent, Cookie");
        response.addHeader("Access-Control-Allow-Credentials", "true");
        filterChain.doFilter(request, response);
    }
}