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MyCrosFilter.java
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MyCrosFilter.java
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package cn.rzhd.wuye.utils;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.util.Assert;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;
import org.springframework.web.cors.CorsProcessor;
import org.springframework.web.cors.CorsUtils;
import org.springframework.web.cors.DefaultCorsProcessor;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.OncePerRequestFilter;
/**
* @ClassName MyCrosFilter
* @Description 处理ajax跨域问题
* @author qinjuncai
* @Date 2017年6月5日 下午4:46:50
* @version 1.0.0
*/
public class MyCrosFilter extends OncePerRequestFilter {
private final CorsConfigurationSource configSource;
private CorsProcessor processor = new DefaultCorsProcessor();
/**
* Constructor accepting a {@link CorsConfigurationSource} used by the filter to find the {@link CorsConfiguration}
* to use for each incoming request.
*
* @see UrlBasedCorsConfigurationSource
*/
public MyCrosFilter(CorsConfigurationSource configSource) {
Assert.notNull(configSource, "CorsConfigurationSource must not be null");
this.configSource = configSource;
}
/**
* Configure a custom {@link CorsProcessor} to use to apply the matched {@link CorsConfiguration} for a request.
* <p>
* By default {@link DefaultCorsProcessor} is used.
*/
public void setCorsProcessor(CorsProcessor processor) {
Assert.notNull(processor, "CorsProcessor must not be null");
this.processor = processor;
}
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
FilterChain filterChain) throws ServletException, IOException {
if (CorsUtils.isCorsRequest(request)) {
// System.out.println("ORGIN----"+request.getHeader("Origin"));
response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
// response.setHeader("Access-Control-Allow-Origin", "http://172.16.10.156:8088");
response.setHeader("Access-Control-Allow-Credentials", "true");
CorsConfiguration corsConfiguration = this.configSource.getCorsConfiguration(request);
if (corsConfiguration != null) {
boolean isValid = this.processor.processRequest(corsConfiguration, request, response);
if (!isValid || CorsUtils.isPreFlightRequest(request)) {
return;
}
}
}
filterChain.doFilter(request, response);
}
}