java后端解决跨域问题
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新建一个filter
public class SimpleCORSFilter implements Filter{ @Override public void destroy() { } @Override public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException { HttpServletResponse response = (HttpServletResponse) res; 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"); chain.doFilter(req, res); } @Override public void init(FilterConfig arg0) throws ServletException { } }
另外web.xml中增加如下配置
<filter> <filter-name>cors</filter-name> <filter-class>com.pillow.web.filter.SimpleCORSFilter</filter-class> </filter> <filter-mapping> <filter-name>cors</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
http://hw1287789687.iteye.com/blog/2212292
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