一狸驳、解決跨域
在控制器上或者接口方法上加注解 @CrossOrigin(origins = "*", allowCredentials = "true", maxAge = 3600)
@CrossOrigin(origins = "*", allowCredentials = "true", maxAge = 3600)
二弱匪、補(bǔ)充
如果上面的方法還不可以畔裕，那么再加一個(gè)過(guò)濾器
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebFilter(urlPatterns = "/*", filterName = "CorsFilter")
public class CorsFilter implements Filter {
@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-Methods", "POST, GET, PUT, OPTIONS, DELETE, PATCH");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
response.setHeader("Access-Control-Expose-Headers", "Location");
chain.doFilter(req, res);
}
@Override
public void init(FilterConfig filterConfig) {
}
@Override
public void destroy() {
}
}
再在啟動(dòng)類(lèi)加一個(gè)注解掃描到這個(gè)過(guò)濾器類(lèi) @ServletComponentScan
@ServletComponentScan
