Spring 跨域配置請(qǐng)求詳解

httpServletResponse.setHeader("Access-Control-Allow-Origin","*");
httpServletResponse.setHeader("Access-Control-Allow-Methods","POST");
httpServletResponse.setHeader("Access-Control-Allow-Headers","Access-Control");
httpServletResponse.setHeader("Allow","POST");

<servlet>  
 <servlet-name>application</servlet-name>
 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 <init-param>
  <param-name>dispatchOptionsRequest</param-name>
  <param-value>true</param-value>
 </init-param>
 <load-on-startup>1</load-on-startup>
</servlet>

// 指定當(dāng)前的AccountController中所有的方法可以處理所有域上的請(qǐng)求
@CrossOrigin(origins = {"http://domain1.com", "http://domain2.com"}, maxAge = 72000L)
@RestController
@RequestMapping("/account")
public class AccountController {

 @RequestMapping("/{id}")
 public Account retrieve(@PathVariable Long id) {
  // ...
 }

 @RequestMapping(method = RequestMethod.DELETE, path = "/{id}")
 public void remove(@PathVariable Long id) {
  // ...
 }
}

@CrossOrigin(maxAge = 3600L)
@RestController
@RequestMapping("/account")
public class AccountController {

 @CrossOrigin(origins = {"http://domain1.com", "http://domain2.com"})
 @RequestMapping("/{id}")
 public Account retrieve(@PathVariable Long id) {
  // ...
 }

 @RequestMapping(method = RequestMethod.DELETE, path = "/{id}")
 public void remove(@PathVariable Long id) {
  // ...
 }
}

<mvc:cors>
 <mvc:mapping path="/api/**"
  allowed-origins="http://domain1.com, http://domain2.com"
  allowed-methods="GET, POST, PUT, HEAD, PATCH, DELETE, OPTIONS, TRACE"
  allowed-headers="header1, header2, header3"
  exposed-headers="header1, header2" 
  allow-credentials="false"
  max-age="72000" />

  <mvc:mapping path="/resources/**"
  allowed-origins="http://domain3.com" />
</mvc:cors>

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

 @Override
 public void addCorsMappings(CorsRegistry registry) {
  registry.addMapping("/api/**")
   .allowedOrigins("http://domain1.com")
   .allowedOrigins("http://domain2.com")
   .allowedMethods("GET", "POST", "PUT", "HEAD", "PATCH", "DELETE", "OPTIONS", "TRACE");
   .allowedHeaders("header1", "header2", "header3")
   .exposedHeaders("header1", "header2")
   .allowCredentials(false)
   .maxAge(72000L);
   
  registry.addMapping("/resources/**")
   .allowedOrigins("http://domain3.com");
 }
}

import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;

@Bean
public FilterRegistrationBean corsFilter() {
 UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
 CorsConfiguration config = new CorsConfiguration();
 config.addAllowedOrigin("http://domain1.com");
 config.addAllowedOrigin("http://domain2.com");
 config.addAllowedHeader("*");
 config.addAllowedMethod("GET, POST, PUT, HEAD, PATCH, DELETE, OPTIONS, TRACE");
 config.setAllowCredentials(true);
 config.setMaxAge(72000L);
 // CORS 配置對(duì)所有接口都有效
 source.registerCorsConfiguration("/**", config);
 FilterRegistrationBean<CorsFilter> bean = new FilterRegistrationBean<>(new CorsFilter(source));
 bean.setOrder(0);
 return bean;
}