I created a very basic spring boot project with rest api's. I tried connecting it to my angular app but it was getting some CORS security error so I switched to postman. I'm trying to test it using postman but I keep receiving a 404 not found error on postman. Why am I not able to connect to my backend and post to tester function?
my controller
package controllers;
@RestController
public class Handler {
@PostMapping("/tester/{id}")
public String tester(@PathVariable(value="id")long userid ){
System.out.println("in tester");
System.out.println(userid);
return "succeeded test";
}
}
main
package halloween.contest;
@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class,
SecurityAutoConfiguration.class})
public class ContestApplication {
public static void main(String[] args) {
SpringApplication.run(ContestApplication.class, args);
}
}
application.properties
spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration
spring.data.rest.base-path=/
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.6</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>halloween</groupId>
<artifactId>contest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>contest</name>
<description>halloween picture contest</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
console
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.5.6)
2021-10-26 15:44:12.823 INFO 18760 --- [ main] halloween.contest.ContestApplication : Starting ContestApplication using Java 1.8.0_144 on DESKTOP-VB80TS0 with PID 18760 (C:\Users\Sergio Rodríguez\Documents\Halloween\contest\target\classes started by Sergio Rodríguez in C:\Users\Sergio Rodríguez\Documents\Halloween\contest)
2021-10-26 15:44:12.827 INFO 18760 --- [ main] halloween.contest.ContestApplication : No active profile set, falling back to default profiles: default
2021-10-26 15:44:16.013 INFO 18760 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2021-10-26 15:44:16.043 INFO 18760 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-10-26 15:44:16.043 INFO 18760 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.54]
2021-10-26 15:44:16.310 INFO 18760 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-10-26 15:44:16.310 INFO 18760 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 3372 ms
2021-10-26 15:44:19.326 INFO 18760 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2021-10-26 15:44:19.342 INFO 18760 --- [ main] halloween.contest.ContestApplication : Started ContestApplication in 7.201 seconds (JVM running for 7.946)
2021-10-26 15:45:45.138 INFO 18760 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2021-10-26 15:45:45.139 INFO 18760 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2021-10-26 15:45:45.157 INFO 18760 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 17 ms
Attached I have a snippet of my postman settings. and the curl command would be
curl --location --request POST 'localhost:8080/tester/69'
CodePudding user response：
To fix the CORS issue, next to @PostMapping("/tester/{id}") add @CrossOrigin(origins = "http://localhost:<port>") where port is the port from which your Angular app is running.
In your target URL, make sure you've included the default Spring Boot port of 8080, e.g. http://localhost:8080/tester/123 and obviously, please double check that you're doing a POST and not a GET.
CodePudding user response：
Answering my own question now that I figured it out. It wasn't apparent based on the code I provided but I'll leave my post for future help (wording helps).
the problem was visibility of packages. I had my controller class in a different package from the main class.