application.properties
spring.datasource.url=jdbc:mysql://localhost:3306/springboot?autoReconnect=true spring.datasource.username=springboot spring.datasource.password=springboot spring.jpa.generate-ddl=true
Student Entity in the Model
package com.example.demo.model;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="student")
public class Student implements Serializable{
private static final long serialVersionUID = -6899110682583120414L;
@Id
@Column(name="Stid")
private int Stid;
@Column(name="Name")
private String Name;
@Column(name="Programme")
private String Programme;
public Student() {
//super();
}
public Student(int stid, String name, String programme) {
super();
Stid = stid;
Name = name;
Programme = programme;
}
@Override
public String toString() {
return "Student [Stid=" + Stid + ", Name=" + Name + ", Programme=" + Programme + "]";
}
}
Student Repository
package com.example.demo.repository; import org.springframework.data.repository.CrudRepository; import com.example.demo.model.Student; public interface StudentRepository extends CrudRepository{ }
Student Controller
package com.example.demo.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.example.demo.model.Student;
import com.example.demo.repository.StudentRepository;
@RestController
public class StudentController {
@Autowired
StudentRepository repository;
@RequestMapping("/findall")
@ResponseBody
public String findall(){
String result = "";
for(Student student:repository.findAll()){
result += " --- " +student.toString();
}
return result ;
}
@RequestMapping("/findbystid")
@ResponseBody
public String findByStid(@RequestParam("stid") int stid){
String result="";
result=repository.findOne(stid).toString();
return result ;
}
@RequestMapping("/register")
String register(Student student) {
repository.save(new Student(10,"JPA","JPA Tut"));
return "Student Registered";
}
}
Main Class
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class HelloJpaMySql1Application {
public static void main(String[] args) {
SpringApplication.run(HelloJpaMySql1Application.class, args);
}
}
This is just a trick, hope it paved your way out.
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