添加跨域

whyczh

2022-03-17 248be3c7a241ef3ae003f79de376a2dd9849235c

添加跨域

 src/main/java/testElectronJ/App.java

@@ -4,9 +4,13 @@
package testElectronJ;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@SpringBootApplication
public class App {
@ServletComponentScan(basePackages = {"testElectronJ.filter"})
public class App extends WebMvcConfigurerAdapter implements WebMvcConfigurer {

    public static void main(String[] args) {
        new SpringApplicationBuilder(App.class).run(args);

 src/main/java/testElectronJ/filter/CrossDomainFilter.java

New file
@@ -0,0 +1,40 @@
package testElectronJ.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @Description :
 * @date 2020/09/11
 **/
@WebFilter
public class CrossDomainFilter implements Filter {


    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        System.out.println("执行了过滤器CrossDomainFilter");
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse resp= (HttpServletResponse) response;
        HttpServletRequest req= (HttpServletRequest) request;
        String origin = req.getHeader("Origin");
        // String origin = "http://localhost:8080";
        resp.setHeader("Access-Control-Allow-Origin", origin);
        resp.setHeader("Access-Control-Allow-Headers", "X-Requested-With,content-type,token");
        resp.setHeader("Access-Control-Allow-Methods", "GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS, PATCH");
        resp.setHeader("Access-Control-Allow-Credentials", "true");

        chain.doFilter(request, resp);
    }

    @Override
    public void destroy() {

    }
}