create getAllPost function (backend)

Back-end/elearning/src/main/java/com/cdap_2020_027/elearning/controller/PostController.java

+package com.cdap_2020_027.elearning.controller;
+
+import com.cdap_2020_027.elearning.model.Post;
+import com.cdap_2020_027.elearning.service.PostServiceImpl;
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ *
+ * @author IT17120012 - Shaini 
+ */
+
+@RestController
+@CrossOrigin
+public class PostController {
+    
+    @Autowired
+    PostServiceImpl postServiceImpl;
+    
+    /* get Post Details */
+    @RequestMapping(value = "/post", method = RequestMethod.GET)
+    public ResponseEntity<List<Post>> getAllPost() {
+        try {
+            List<Post> postList = postServiceImpl.getAllPost();
+            return new ResponseEntity<>(postList, HttpStatus.OK);
+        } catch (Exception ex) {
+            System.out.println(ex);
+            return new ResponseEntity<>(null, HttpStatus.INTERNAL_SERVER_ERROR);
+        }
+    }
+}

Back-end/elearning/src/main/java/com/cdap_2020_027/elearning/model/Post.java

+package com.cdap_2020_027.elearning.model;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+/**
+ *
+ * @author IT17120012 - Shaini 
+ */
+
+@Entity
+@Table(name = "post")
+public class Post {
+    
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "ID")
+    private Integer id;
+
+    @Column(name = "TITLE")
+    private String title;
+
+    @Column(name = "CONTENT")
+    private String content;
+
+    @Column(name = "IMAGE")
+    private String image;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getImage() {
+        return image;
+    }
+
+    public void setImage(String image) {
+        this.image = image;
+    }
+}

Back-end/elearning/src/main/java/com/cdap_2020_027/elearning/repository/PostRepository.java

+package com.cdap_2020_027.elearning.repository;
+
+import com.cdap_2020_027.elearning.model.Post;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+/**
+ *
+ * @author IT17120012 - Shaini 
+ */
+public interface PostRepository extends JpaRepository<Post,Integer>{
+    
+}

Back-end/elearning/src/main/java/com/cdap_2020_027/elearning/service/PostServiceImpl.java

+package com.cdap_2020_027.elearning.service;
+
+import com.cdap_2020_027.elearning.model.Post;
+import com.cdap_2020_027.elearning.repository.PostRepository;
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ *
+ * @author IT17120012 - Shaini 
+ */
+
+@Service
+public class PostServiceImpl {
+    
+    @Autowired
+    PostRepository postRepository;   
+    
+    public List<Post> getAllPost() {
+       return postRepository.findAll();
+    }
+}