版权声明:本文为博主原创文章,欢迎注明出处转载 https://blog.csdn.net/shepherd_dirk/article/details/85340438
跨域拦截器:CrossOriginFilter.java
package com.dirk.doorlock.controller.filter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.text.NumberFormat;
/**
* @Author: Dirk
* @Description: 跨域拦截器
* @Date: Created in 13:39 2018/4/14
*/
public class CrossOriginFilter implements Filter {
private String allowOrigin;
private static final Logger logger = LoggerFactory.getLogger(CrossOriginFilter.class);
public static final NumberFormat FORMAT = new DecimalFormat("0.000");
@Override
public void init(FilterConfig filterConfig) throws ServletException {
allowOrigin = filterConfig.getInitParameter("allowOrigin");
}
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
long begin = System.currentTimeMillis();
HttpServletResponse response = (HttpServletResponse) res;
response.setHeader("Access-Control-Allow-Origin", allowOrigin);
response.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Authorization");
if ("OPTIONS".equals(((HttpServletRequest) req).getMethod())) {
logger.warn("options method");
response.sendError(202, "options method");
return;
}
chain.doFilter(req, res);
if (logger.isInfoEnabled()) {
long end = System.currentTimeMillis();
BigDecimal processed = new BigDecimal(end - begin).divide(new BigDecimal(1000));
String uri = ((HttpServletRequest) req).getRequestURI();
//login.do 作为负载均衡健康检查的url,打印日志的话,日志量会很大
if (!uri.equals("/login.do")) {
logger.info("Processed in {} second(s). URI={}", FORMAT.format(processed), uri);
}
}
}
@Override
public void destroy() {
}
}
注册
package com.dirk.doorlock;
import com.dirk.doorlock.controller.filter.CrossOriginFilter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
public class DoorlockApplication {
public static void main(String[] args) {
SpringApplication.run(DoorlockApplication.class, args);
}
@Bean
public FilterRegistrationBean crossOriginFilterRegistration() {
FilterRegistrationBean registration = new FilterRegistrationBean();
registration.setFilter(new CrossOriginFilter());
registration.addUrlPatterns("*");
registration.addInitParameter("allowOrigin", "*");
registration.setName("CrossOriginFilter");
registration.setOrder(1);
return registration;
}
}