I'm trying to send a post request to Spring but I always get this error: Method 'POST' is not supported
I also get this error when trying to post data
I'm using eclipse and spring boot, my project is connected to a postgres database
The connection to my databse is working fine
The program was supposed to get input from a html form and save it in my database.
This is my entity:
package entity;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.Table;
@Entity
@Table(name = "xromy")
public class xRomy {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
// muss wohl public sein
public Integer id;
private String name;
private Integer alter;
public xRomy() {
}
public xRomy(String name, Integer alter) {
this.name = name;
this.alter = alter;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAlter() {
return alter;
}
public void setAlter(Integer alter) {
this.alter = alter;
}
@Override
public String toString() {
return "xRomy{" + "\n id=" + id + "\n name=" + name + "\n alter=" + alter + "}";
}
}
my repository:
package repository;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import entity.xRomy;
@Repository
public interface RomyRep extends JpaRepository<xRomy, Integer> {
}
my controller:
package controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;
import entity.xRomy;
import jakarta.validation.Valid;
import repository.RomyRep;
@RestController
public class ConttrollNeuDs {
@Autowired
RomyRep romyRep;
// um neuen Eintrag eizugeben
@GetMapping("/neuerEintrag")
public ModelAndView getName() {
ModelAndView model = new ModelAndView("newName");
model.addObject("xromy", new xRomy());
return model;
}
// sollte neuen Eintrag speichern
@PostMapping("/save")
public String postNew(@Valid xRomy xromy, BindingResult result, ModelAndView model) {
model.addObject("xromy", xromy);
xRomy Xromy = new xRomy();
Xromy.setName(xromy.getName());
Xromy.setAlter(xromy.getAlter());
romyRep.save(Xromy);
return "redirect:/testView";
}
}
my pom.xml:
<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>3.3.2</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>hilfe</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>hilfe</name>
<description>Demo project for Spring Boot</description>
<url/>
<licenses>
<license/>
</licenses>
<developers>
<developer/>
</developers>
<scm>
<connection/>
<developerConnection/>
<tag/>
<url/>
</scm>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
and my application.properties file:
spring.application.name=hilfe
#Datenbank Vb
spring.datasource.url=jdbc:postgresql://localhost:5433/romy
spring.datasource.username=
spring.datasource.password=
spring.datasource.driver-class-name=org.postgresql.Driver
#
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
#
spring.mvc.static-path-pattern=/resources/**
#test
spring.jpa.generate-ddl=true
username and password are left out but as I said the connection to the database is working just fine
I tried almost everything and read a lot of posts about similar problems on here but couldn't find a solution.
The only endpoint that accepts POST method in your app is /save because that is the only place where you defined your @PostMapping
, so to send POST request you would have to use this url:
localhost:8080/save
Also make sure that your request body is valid because you put @Valid
annotation.