Enable CORS in spring boot api code example

Example 1: spring security enable global cors

@Override
	public void configure(HttpSecurity http) throws Exception {
		http.cors().configurationSource(request -> new CorsConfiguration().applyPermitDefaultValues())
 		// ...
	}


	@Bean
	public WebMvcConfigurer corsConfigurer() {
		return new WebMvcConfigurer() {
			@Override
			public void addCorsMappings(CorsRegistry registry) {
				registry.addMapping("/**")
				.allowedOrigins("*")
				.allowedMethods("GET", "PUT", "POST", "PATCH", "DELETE", "OPTIONS");
			}
		};
	}

Example 2: spring cors

public WebMvcConfigurer corsConfigurer() {
		return new WebMvcConfigurer() {
			@Override
			public void addCorsMappings(CorsRegistry registry) {
				registry.addMapping("/greeting-javaconfig").allowedOrigins("http://localhost:9000");
			}
		};
	}Copy

Example 3: CORS with Spring Boot

@CrossOrigin

Example 4: cors filter spring boot not working in the tomcat web application

<filter>
        <filter-name>cors</filter-name>
        <filter-class>com.udalmik.filter.CorsFilter</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>cors</filter-name>
        <url-pattern>/register</url-pattern>
    </filter-mapping>