how to fixe cors problen in angular 6. -------------------------------------------- e.g. -@CrossOrigin(origins = "http://localhost:4200/") -at @configuration class @Bean public CorsFilter corsFilter() { UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); CorsConfiguration config = new CorsConfiguration(); config.setAllowCredentials(true); config.addAllowedOrigin("*"); config.addAllowedHeader("*"); config.addAllowedMethod("OPTIONS"); config.addAllowedMethod("GET"); config.addAllowedMethod("POST"); config.addAllowedMethod("PUT"); config.addAllowedMethod("DELETE"); source.regis...
brief : ALTER TABLE A ADD CONSTRAINT id PRIMARY KEY (id) ALTER TABLE B ADD COLUMN a_id VARCHAR //add fkey in B as additional cols ALTER TABLE B ADD COLUMN a_id int //now create the fkey ref to agent table on address table alter table B ADD Foreign key(a_id) references A(id); // To obtain the generated constraint name of a table SHOW CREATE TABLE B; ALTER TABLE B DROP FOREIGN KEY b _ibfk_1; //to disable fkey checks. SET foreign_key_checks = 0/1;
advantage : 1. production ready application 2. complex configuartion is reduced 3. pom.xml -all dependency define via ths file . 4. used for standalone and web apps . 5. used for microservices -*** 6. @EnableAutoConfiguration automatically configures the Spring application based on its included jar files note: 6.1- Auto-configuration is usually applied based on the classpath and the defined beans 6.2- @EnableAutoConfiguration has a exclude attribute to disable an auto-configuration explicitly otherwise we can simply exclude it from the pom.xml, for example if we donot want Spring to configure the tomcat then exclude spring-bootstarter-tomcat from spring-boot-starter-web. eg. like as follwing : <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> ...
name is an key in the jsonarr
ReplyDeleteLike .
Jsonarr=[{
Id:1,name:"sushil"
},
{
Id:12,
Name:"sk"
}
]
On v.name we will get sushil and sk values from jsonarr array object
ReplyDelete