psh
1 year ago
8 changed files with 99 additions and 87 deletions
@ -1,56 +1,56 @@ |
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package org.nl.config.saconfig; |
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import org.springframework.core.annotation.Order; |
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import org.springframework.stereotype.Component; |
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import org.springframework.web.cors.CorsConfiguration; |
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import javax.servlet.*; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import java.io.IOException; |
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/** |
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* 跨域过滤器 |
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* @author kong |
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*/ |
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@Component |
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@Order(-200) |
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public class CorsFilter implements Filter { |
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static final String OPTIONS = "OPTIONS"; |
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@Override |
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public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) |
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throws IOException, ServletException { |
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HttpServletRequest request = (HttpServletRequest) req; |
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HttpServletResponse response = (HttpServletResponse) res; |
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// 允许指定域访问跨域资源
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response.setHeader("Access-Control-Allow-Origin", "*"); |
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// 允许所有请求方式
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response.setHeader("Access-Control-Allow-Methods", "*"); |
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// 有效时间
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response.setHeader("Access-Control-Max-Age", "3600"); |
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// 允许的header参数
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response.setHeader("Access-Control-Allow-Headers", "*"); |
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response.setHeader("Access-Control-Allow-Credentials", "true"); |
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// 如果是预检请求，直接返回
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if (OPTIONS.equals(request.getMethod())) { |
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System.out.println("=======================浏览器发来了OPTIONS预检请求=========="); |
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response.getWriter().print(""); |
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return; |
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} |
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// System.out.println("*********************************过滤器被使用**************************");
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chain.doFilter(req, res); |
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} |
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@Override |
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public void init(FilterConfig filterConfig) { |
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} |
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@Override |
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public void destroy() { |
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} |
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} |
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//package org.nl.config.saconfig;
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//
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//import org.springframework.core.annotation.Order;
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//import org.springframework.stereotype.Component;
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//import org.springframework.web.cors.CorsConfiguration;
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//
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//import javax.servlet.*;
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//import javax.servlet.http.HttpServletRequest;
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//import javax.servlet.http.HttpServletResponse;
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//import java.io.IOException;
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//
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///**
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// * 跨域过滤器
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// * @author kong
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// */
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//@Component
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//@Order(-200)
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//public class CorsFilter implements Filter {
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//
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// static final String OPTIONS = "OPTIONS";
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//
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// @Override
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// public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
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// throws IOException, ServletException {
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// HttpServletRequest request = (HttpServletRequest) req;
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// HttpServletResponse response = (HttpServletResponse) res;
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// // 允许指定域访问跨域资源
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// response.setHeader("Access-Control-Allow-Origin", "*");
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//// // 允许所有请求方式
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//// response.setHeader("Access-Control-Allow-Methods", "*");
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//// // 有效时间
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//// response.setHeader("Access-Control-Max-Age", "3600");
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//// // 允许的header参数
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//// response.setHeader("Access-Control-Allow-Headers", "*");
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// response.setHeader("Access-Control-Allow-Credentials", "true");
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//
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// // 如果是预检请求，直接返回
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// if (OPTIONS.equals(request.getMethod())) {
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// System.out.println("=======================浏览器发来了OPTIONS预检请求==========");
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// response.getWriter().print("");
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// return;
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// }
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//
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// // System.out.println("*********************************过滤器被使用**************************");
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// chain.doFilter(req, res);
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// }
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//
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// @Override
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// public void init(FilterConfig filterConfig) {
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// }
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//
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// @Override
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// public void destroy() {
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// }
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//
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//}
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