springmvc编写跨域访问fiter

先写一个CorsFilter类

public class CorsFilter implements Filter{

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		
	}

	@Override
	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)
			throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) servletResponse;
        HttpServletRequest request = (HttpServletRequest)servletRequest;
		String origin = request.getHeader("Origin");
        response.setHeader("Access-Control-Allow-Origin", 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,Authorization");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        String method = request.getMethod();
        if(method.equalsIgnoreCase("OPTIONS")){
        	servletResponse.getOutputStream().write("Success".getBytes("utf-8"));
        }else{
        	chain.doFilter(servletRequest, servletResponse);
        }
	}

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

}

注意还要再web.xml中进行filter配置

	
    	corsFilter
	    XXX.XXX.CorsFilter
	
	
	    corsFilter
	    /*
	

这样本地跨域访问就完成了