java使用filter设置跨域访问

import java.io.IOException;

import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class AuthorityFilter implements Filter {

	@Override

	public void destroy() {

		// TODO Auto-generated method stub

	}

	@Override

	public void doFilter(ServletRequest request, ServletResponse response,FilterChain chain) throws IOException, ServletException {

		HttpServletResponse nHttpServletResponse = (HttpServletResponse) response;

		HttpServletRequest nHttpServletRequest = (HttpServletRequest) request;

		String nAppKey = nHttpServletRequest.getHeader("Accept-Key");

		if (nAppKey == null || "".equals(nAppKey)) {

			nHttpServletResponse.setStatus(403);

			return;

		} else {

			// 存在则验证准确性

//			if (!nAppKey.toString().equals(XSetting.ZTOKEN_KEY)) {

//				nHttpServletResponse.setStatus(403);

//				return;

//			}

		}

		nHttpServletResponse.setHeader("Access-Control-Allow-Origin", "*");

		nHttpServletResponse.setHeader("Access-Control-Allow-Headers","Accept-Key");

		chain.doFilter(request, nHttpServletResponse);

	}

	@Override

	public void init(FilterConfig arg0) throws ServletException {

		// TODO Auto-generated method stub

	}

}
巴特西

java使用filter设置跨域访问

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