Spring Boot JDBC POSTMAN

Author: Urunov

Project1-SpringBoot-RestAPI-JDBC-MySQL-Gradle/SpringDatabase/src/main/java/spring/database/controller/UserController.java

@@ -7,6 +7,7 @@
 import spring.database.dao.UserRepository;
 import spring.database.model.User;
 
+import java.lang.annotation.Documented;
 import java.sql.SQLIntegrityConstraintViolationException;
 import java.util.List;
 
@@ -17,22 +18,22 @@
  */
 
 @RestController
-@RequestMapping("/user")
+@RequestMapping("/users")
 public class UserController {
     //
 
     @Autowired
-    UserRepository userRepository;
+    private UserRepository userRepository;
 
     @GetMapping("/main")
     public String test(){
         String testing = "testing";
         return testing;
     }
 
-    @GetMapping
+    @GetMapping("/list")
     public List<User> getAllUsers(){
-        return userRepository.getUser();
+        return userRepository.getUsers();
     }
 
     @GetMapping(value = "/{id}")
@@ -44,12 +45,11 @@ public ResponseEntity<?> getUser (@PathVariable("id") Integer id) {
         return new ResponseEntity<User>(user, HttpStatus.OK);
     }
 
-    @PostMapping
+    @PostMapping(value = "/add")
     public ResponseEntity<String> createUser(@RequestBody User user) throws SQLIntegrityConstraintViolationException {
         if(userRepository.findById(user.getId()) != null) {
             return new ResponseEntity<String>("Duplicate Entry: " + user.getId(), HttpStatus.IM_USED);
         }
-
         userRepository.saveUser(user);
         return ResponseEntity.status(HttpStatus.CREATED).build();
     }
@@ -64,6 +64,11 @@ public ResponseEntity<?> updateUser(@RequestBody User user) {
         return new ResponseEntity<User>(user, HttpStatus.OK);
     }
 
+    /**
+     * Deletes user by id
+     * @param id user's id where is being deleted
+     * @return ResponseEntity deleted user entity
+     * */
     @DeleteMapping(value = "/{id}")
     public ResponseEntity<?> deleteUser(@PathVariable("id") Integer id) {
         User user = userRepository.findById(id);

Project1-SpringBoot-RestAPI-JDBC-MySQL-Gradle/SpringDatabase/src/main/java/spring/database/dao/UserRepository.java

@@ -24,13 +24,16 @@
 public class UserRepository {
 
     @Autowired
-    JdbcTemplate jdbcTemplate;
+    private JdbcTemplate jdbcTemplate;
 
-    public List<User> getUser(){
-        return  jdbcTemplate.query("select id,firstname,lastname,city , country , phoneno,emailid from user", new UserRowMapper());
+    public List<User> getUsers() {
+        String sql = "SELECT * FROM user";
+
+        return jdbcTemplate.query(sql, new UserRowMapper());
+        //return  jdbcTemplate.query("select id, firstname, lastname, city, country, phoneno, emailid from user",  new UserRowMapper());
     }
 
-    public User findById(Integer id){
+    public User findById(Integer id) {
 
         String sql = "SELECT * FROM user WHERE ID = ?";
         try{

Project1-SpringBoot-RestAPI-JDBC-MySQL-Gradle/SpringDatabase/src/main/java/spring/database/model/UserRowMapper.java

@@ -1,6 +1,6 @@
 package spring.database.model;
 
-import javax.swing.tree.RowMapper;
+import org.springframework.jdbc.core.RowMapper;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 
@@ -9,9 +9,10 @@
  * @project database
  * @Author Hamdamboy
  */
-public class UserRowMapper implements RowMapper {
-    //
-    public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
+public class UserRowMapper implements RowMapper<User> {
+
+    @Override
+    public User mapRow(ResultSet rs, int rowNum) throws SQLException {
         User user = new User(); // Obj of User, and mapping DB elements.
         user.setId(rs.getInt("id"));
         user.setFirstname(rs.getString("firstname"));
@@ -20,9 +21,6 @@ public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
         user.setCountry(rs.getString("country"));
         user.setPhoneno(rs.getString("phoneno"));
         user.setEmailid(rs.getString("emailid"));
-
         return user;
     }
-
-
 }

Project1-SpringBoot-RestAPI-JDBC-MySQL-Gradle/SpringDatabase/src/main/resources/application.properties

@@ -3,7 +3,7 @@
 
 # Database (MySQL)
 
-spring.datasource.url= jdbc:mysql://localhost:3306/management
+spring.datasource.url= jdbc:mysql://localhost:3306/management?serverTimezone=UTC
 spring.datasource.username=root
 spring.datasource.password=posilka2020
 spring.datasource.driver-class-name=com.mysql.jdbc.Driver