第一种:工具类方式
import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.CorsRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; /** * 跨域 * * @provider * @author * */ @Configuration public class CorsConfiguration { @Bean public WebMvcConfigurer corsConfigurer() { return new WebMvcConfigurerAdapter() { @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedHeaders("*") .allowedMethods("*") .allowedOrigins("*"); } }; } }
第二种:springboot注解方式
@CrossOrigin
第三种:
public class SimpleCORSFilter implements Filter{ @Override public void destroy() { } @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, OPTIONS, DELETE"); response.setHeader("Access-Control-Max-Age", "3600"); response.setHeader("Access-Control-Allow-Headers", "x-requested-with"); chain.doFilter(req, res); } @Override public void init(FilterConfig arg0) throws ServletException { } }
另外web.xml中增加如下配置
<filter> <filter-name>cors</filter-name> <filter-class>com.ssm.web.filter.SimpleCORSFilter</filter-class> </filter> <filter-mapping> <filter-name>cors</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>