commit

Author: mc-es

06-SpringREST/003-PathVariable/pom.xml

@@ -0,0 +1,63 @@
+<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>
+	<groupId>com.mc_es</groupId>
+	<artifactId>003-PathVariable</artifactId>
+	<version>1.0</version>
+	<packaging>war</packaging>
+	<properties>
+		<spring-webmvc.version>5.3.23</spring-webmvc.version>
+		<jackson-databind.version>2.13.4</jackson-databind.version>
+		<javax.servelet-api.version>4.0.1</javax.servelet-api.version>
+		<javax.servlet.jsp-api.version>2.3.3</javax.servlet.jsp-api.version>
+		<javax.annotation-api.version>1.3.2</javax.annotation-api.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-webmvc</artifactId>
+			<version>${spring-webmvc.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>${jackson-databind.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>javax.servlet</groupId>
+			<artifactId>javax.servlet-api</artifactId>
+			<version>${javax.servelet-api.version}</version>
+			<scope>provided</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>javax.servlet.jsp</groupId>
+			<artifactId>javax.servlet.jsp-api</artifactId>
+			<version>${javax.servlet.jsp-api.version}</version>
+			<scope>provided</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>javax.annotation</groupId>
+			<artifactId>javax.annotation-api</artifactId>
+			<version>${javax.annotation-api.version}</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.8.1</version>
+				<configuration>
+					<release>18</release>
+				</configuration>
+			</plugin>
+			<plugin>
+				<artifactId>maven-war-plugin</artifactId>
+				<version>3.2.3</version>
+			</plugin>
+		</plugins>
+	</build>
+</project>

06-SpringREST/003-PathVariable/src/main/java/com/mc_es/spring/config/AppConfig.java

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+package com.mc_es.spring.config;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+
+@Configuration
+@EnableWebMvc
+@ComponentScan(basePackages = "com.mc_es.spring")
+public class AppConfig {
+
+}

06-SpringREST/003-PathVariable/src/main/java/com/mc_es/spring/config/DispatcherServletInitializer.java

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+package com.mc_es.spring.config;
+
+import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
+
+public class DispatcherServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
+
+	@Override
+	protected Class<?>[] getRootConfigClasses() {
+		return null;
+	}
+
+	@Override
+	protected Class<?>[] getServletConfigClasses() {
+		return new Class[] { AppConfig.class };
+	}
+
+	@Override
+	protected String[] getServletMappings() {
+		return new String[] { "/" };
+	}
+
+}

06-SpringREST/003-PathVariable/src/main/java/com/mc_es/spring/entitiy/Student.java

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+package com.mc_es.spring.entitiy;
+
+public class Student {
+	private int id;
+	private String firstName;
+	private String lastName;
+	private int age;
+
+	public Student() {
+
+	}
+
+	public Student(int id, String firstName, String lastName, int age) {
+		this.id = id;
+		this.firstName = firstName;
+		this.lastName = lastName;
+		this.age = age;
+	}
+
+	public int getId() {
+		return id;
+	}
+
+	public void setId(int id) {
+		this.id = id;
+	}
+
+	public String getFirstName() {
+		return firstName;
+	}
+
+	public void setFirstName(String firstName) {
+		this.firstName = firstName;
+	}
+
+	public String getLastName() {
+		return lastName;
+	}
+
+	public void setLastName(String lastName) {
+		this.lastName = lastName;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+}

06-SpringREST/003-PathVariable/src/main/java/com/mc_es/spring/rest/StudentRestController.java

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+package com.mc_es.spring.rest;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.annotation.PostConstruct;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.mc_es.spring.entitiy.Student;
+
+@RestController
+@RequestMapping(value = "/api")
+public class StudentRestController {
+	private List<Student> students;
+
+	// bir nesne olusturulduktan hemen sonra herhangi uygulanan bir metoda giris
+	// saglamasi ve o metodu isletmesidir.
+	// @PostConstruct metodu yalnizca metod baslarinda uygulanabilen bir notasyon
+	// turudur.
+	@PostConstruct
+	public void load() {
+		students = new ArrayList<Student>();
+		students.add(new Student(0, "Can", "Eser", 21));
+		students.add(new Student(1, "Emirhan", "Eser", 13));
+		students.add(new Student(2, "Furkan", "Eser", 19));
+	}
+
+	@GetMapping(value = "/students")
+	public List<Student> getStudents() {
+		return students;
+	}
+
+	// @PathVariable ve @RequestParam anotasyonlari gonderilen istegin icindeki
+	// parametrelerdir.
+	// Ortak yonu her ikisininde parametre olmasidir.
+	// Eger elimizde bir url template varsa bu durumda @PathVariable kullanimi daha
+	// uygundur.
+	// Diger durumlar icinse @RequestParam daha kullanislidir.
+	// ornekler:
+
+	// http://localhost:8080/movies -- (/movies)
+	// bu istek tum filmlerin listesini doner
+
+	// http://localhost:8080/movies/1 -- (/movies/{moviesId})
+	// bu istek id degeri 1 olan filmi doner
+
+	// http://localhost:8080/movies/1/stars --(/movies/{movieId}/stars)
+	// bu istek id degeri 1 oan filmin oyuncularinin listesini doner
+
+	// http://localhost:8080/movies/1/stars/2 --(/movies/1/stars/2)
+	// bu istek id degeri 1 olan filmin oyuncularindan id degeri 2 olani doner
+
+	// dikkat ettiyseniz, baglanti adresi bir template halindedir. Toplamda 4 metot
+	// mevcuttur.
+
+	// @RequestParam ornegi inceliyelim:
+	// http://localhost:8080/movies/search
+	// filtresi tum kaynagi getirir
+
+	// http://localhost:8080/movies/search/?name=saw
+	// istedigimiz parametreleri zorunlu veya istege bagli yapabilecegimiz gibi
+	// onlara default deger de verebiliriz
+
+	// http://localhost:8080/movies/search?name=saw&country=abd
+	// filmin adi saw olan ve ABD yapimi olan filmleri getir
+	@GetMapping(value = "/students/{studentId}")
+	public Student getStudentById(@PathVariable(name = "studentId") int studentId) {
+		return this.students.get(studentId);
+	}
+}

06-SpringREST/003-PathVariable/src/main/webapp/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Class-Path: 
+

06-SpringREST/003-PathVariable/src/main/webapp/index.jsp

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+<%@ page language="java" contentType="text/html; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<!DOCTYPE html>
+<html>
+	<head>
+		<meta charset="UTF-8">
+		<title>Insert title here</title>
+		<style type="text/css">
+		
+		a {
+			font-size: 20px;	
+		}
+		a:hover {
+			color: red;
+		}
+		</style>
+	</head>
+	
+	<body>
+		<h2 id="back">Path Variable Annotation</h2>
+		<a href="${pageContext.request.contextPath}/api/students">Get all students</a>
+		<br>
+		<br>
+		<a href="${pageContext.request.contextPath}/api/students/0">Get student by id</a>
+	</body>
+</html>