添加跨域过滤器

src/main/java/im/zhaojun/common/config/CorsFilter.java

@@ -0,0 +1,34 @@
+package im.zhaojun.common.config;
+
+import org.springframework.context.annotation.Configuration;
+
+import javax.servlet.*;
+import javax.servlet.annotation.WebFilter;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@WebFilter(filterName = "CorsFilter")
+@Configuration
+public class CorsFilter implements Filter {
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+
+    }
+
+    @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-Credentials", "true");
+        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PATCH, DELETE, PUT");
+        response.setHeader("Access-Control-Max-Age", "3600");
+        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+        chain.doFilter(req, res);
+    }
+
+    @Override
+    public void destroy() {
+
+    }
+}