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part 2 done

Whitney Martinez 5 年前
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README.md 查看文件

@@ -4,26 +4,26 @@ This repository provides a starter project for a CRUD application using Spring B
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 ## Exercise
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-Using this project as a starter, you will create a Person class as an entity to persist to H2 with an autogenerated id, and provide access to CRUD operations on those entities using a Spring Rest Controller supporting `GET`, `PUT`, `POST`, and `DELETE` operations. Spring Boot will handle the actual HTTP traffic and database components for you, you just need to build the last few pieces of the puzzle described in this lab.
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+Using this project as a starter, you will create a Model.Person class as an entity to persist to H2 with an autogenerated id, and provide access to CRUD operations on those entities using a Spring Rest Controller supporting `GET`, `PUT`, `POST`, and `DELETE` operations. Spring Boot will handle the actual HTTP traffic and database components for you, you just need to build the last few pieces of the puzzle described in this lab.
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 As you are working on this lab, you can demo the behavior of your `GET` endpoints using your browser. For `PUT`, `POST`, and `DELETE` you will need a more robust tool, such as [Postman](https://www.getpostman.com/) or [curl](https://curl.haxx.se/).
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 ### Part 1:
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-Create a `Person` class with fields for first name, last name, and an id number.
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+Create a `Model.Person` class with fields for first name, last name, and an id number.
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-Create a `PersonController` class with `Person createPerson(Person p)`, `Person getPerson(int id)`, `List<Person> getPersonList()`, `Person updatePerson(Person p)`, and `void DeletePerson(int id)` methods, and let it track a list of Person objects.
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+Create a `PersonController` class with `Model.Person createPerson(Model.Person p)`, `Model.Person getPerson(int id)`, `List<Model.Person> getPersonList()`, `Model.Person updatePerson(Model.Person p)`, and `void DeletePerson(int id)` methods, and let it track a list of Model.Person objects.
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-Add the `@RestController` annotation to your `PersonController` class, and using the "Endpoints" list in the Reference section below, add the appropriate `@RequestMapping` annotations to each of your methods. Endpoints should be at `/people` and `/people/{id}` as appropriate. You will have to use `@PathVariable` for id numbers in the URI and `@RequestBody` for Person objects sent in the requests.
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+Add the `@RestController` annotation to your `PersonController` class, and using the "Endpoints" list in the Reference section below, add the appropriate `@RequestMapping` annotations to each of your methods. Endpoints should be at `/people` and `/people/{id}` as appropriate. You will have to use `@PathVariable` for id numbers in the URI and `@RequestBody` for Model.Person objects sent in the requests.
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 ### Part 2: 
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-Add the `@Entity` and `@Id` annotations to your Person class as shown in the Reference section. These tell Spring how to convert your Person objects to database entities when you pass them to a repository.
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+Add the `@Entity` and `@Id` annotations to your Model.Person class as shown in the Reference section. These tell Spring how to convert your Model.Person objects to database entities when you pass them to a repository.
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-Create a `PersonRepository` interface that extends the `CrudRepository` interface. Be sure to specify the `Person` type parameter on `CrudRepository<>`. You will not need to implement this interface as Spring automatically generates an implementation at runtime.
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+Create a `PersonRepository` interface that extends the `CrudRepository` interface. Be sure to specify the `Model.Person` type parameter on `CrudRepository<>`. You will not need to implement this interface as Spring automatically generates an implementation at runtime.
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-Update your controller logic to use the `PersonRepository` instead of manually tracking Person objects in a list. You will need a `PersonRepository` field marked with the `@Autowired` annotation -- again, Spring will provide an implementation here automatically. You will need to use the `findAll()`, `findOne(id)`, `save(Person)` and `delete(id)` methods of `PersonRepository` to fetch and save Person objects.
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+Update your controller logic to use the `PersonRepository` instead of manually tracking Model.Person objects in a list. You will need a `PersonRepository` field marked with the `@Autowired` annotation -- again, Spring will provide an implementation here automatically. You will need to use the `findAll()`, `findOne(id)`, `save(Model.Person)` and `delete(id)` methods of `PersonRepository` to fetch and save Model.Person objects.
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 ### Part 3:
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@@ -46,11 +46,11 @@ Now that your CRUD application is working, it's time to make sure the correct HT
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 - `DELETE /people/{id}` - delete the person with id number `{id}`
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   - Response: `204 No Content`
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-**Person class and  ID configuration for H2**:
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+**Model.Person class and  ID configuration for H2**:
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 ```Java
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 @Entity
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-public class Person {
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+public class Model.Person {
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     @Id
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     @GeneratedValue(strategy = GenerationType.AUTO)

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src/main/java/Controllers/PersonController.java 查看文件

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+package Controllers;
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+
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+import Model.Person;
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+import Repository.PersonRepository;
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+import org.springframework.beans.factory.annotation.Autowired;
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+import org.springframework.http.HttpStatus;
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+import org.springframework.http.RequestEntity;
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+import org.springframework.http.ResponseEntity;
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+import org.springframework.web.bind.annotation.*;
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+
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+@RestController
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+public class PersonController {
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+
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+    private final PersonRepository personRepository;
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+    @Autowired
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+    public PersonController(PersonRepository personRepository) {
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+        this.personRepository = personRepository;
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+    }
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+
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+    @RequestMapping(value = "/person",method = RequestMethod.GET)
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+    public ResponseEntity<Iterable<Person>> getPersonList(){
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+        Iterable<Person> listOfPeople = personRepository.findAll();
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+        return new ResponseEntity<>(listOfPeople, HttpStatus.OK);
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+    }
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+
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+    @RequestMapping(value = "/person",method = RequestMethod.POST)
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+    public ResponseEntity<Person> createPerson(@RequestBody Person p){
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+        return new ResponseEntity<>(this.personRepository.save(p),HttpStatus.CREATED);
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+    }
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+
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+    @RequestMapping(value = "/person/{id}", method = RequestMethod.GET)
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+    public ResponseEntity<Person> getPerson(@PathVariable Long id){
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+
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+        if(this.personRepository.exists(id)){
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+            return new ResponseEntity<>(this.personRepository.findOne(id), HttpStatus.OK);
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+        }else{
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+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
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+        }
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+
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+    }
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+
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+    @RequestMapping(value = "/person/{id}", method = RequestMethod.PUT)
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+    public ResponseEntity<Person> updatePerson(@PathVariable Long id,@RequestBody Person p){
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+
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+        if(!this.personRepository.exists(id)){
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+            return new ResponseEntity<>(this.personRepository.findOne(id), HttpStatus.OK);
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+
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+        }else{
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+            Person people = personRepository.save(p);
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+            people.setFirstName(p.getFirstName());
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+            people.setLastName(p.getLastName());
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+            return new ResponseEntity<>(this.personRepository.findOne(id),HttpStatus.OK);
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+
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+        }
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+
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+    }
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+
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+    @RequestMapping(value = "/person/{id}",method = RequestMethod.DELETE)
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+    public void DeletePerson(@PathVariable Long id) {
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+    }
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+
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+}

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src/main/java/Model/Person.java 查看文件

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+package Model;
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+
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+import javax.persistence.*;
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+
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+@Entity
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+public class Person {
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+
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+    @Id
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+    @GeneratedValue
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+    Long id;
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+    String firstName;
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+    String lastName;
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+
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+    public Long getId() {
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+        return id;
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+    }
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+
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+    public void setId(Long id) {
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+        this.id = id;
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+    }
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+
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+    public String getFirstName() {
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+        return firstName;
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+    }
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+
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+    public void setFirstName(String firstName) {
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+        this.firstName = firstName;
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+    }
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+
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+    public String getLastName() {
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+        return lastName;
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+    }
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+
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+    public void setLastName(String lastName) {
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+        this.lastName = lastName;
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+    }
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+}

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src/main/java/Repository/PersonRepository.java 查看文件

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+package Repository;
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+import Model.Person;
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+import org.springframework.beans.factory.annotation.Autowired;
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+import org.springframework.data.repository.CrudRepository;
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+
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+public interface PersonRepository extends CrudRepository <Person,Long> {
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+}

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src/main/resources/static/Requests.html 查看文件

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       </section>
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       <section>
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         <h2>GET person by id</h2>
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-        <label for="getPersonId">Person ID:</label><input type="number" name="getPersonId" value="1" id="getPersonId"><br>
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+        <label for="getPersonId">Model.Person ID:</label><input type="number" name="getPersonId" value="1" id="getPersonId"><br>
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         <button type="button" name="submitGet" onclick="getPerson()">Submit GET</button>
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       </section>
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       <section>
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-        <h2>POST new Person:</h2>
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+        <h2>POST new Model.Person:</h2>
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         <label for="firstName">First Name:</label><input type="text" name="firstName" value="foo" id="postPersonFirstName"><br>
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         <label for="lastName">Last Name:</label><input type="text" name="lastName" value="bar" id="postPersonLastName"><br>
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       <section>
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         <h2>DELETE person by ID</h2>
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-        <label for="delPersonId">Person ID:</label><input type="number" name="delPersonId" value="1" id="deletePersonId"><br>
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+        <label for="delPersonId">Model.Person ID:</label><input type="number" name="delPersonId" value="1" id="deletePersonId"><br>
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         <button type="button" name="submitDelete" onclick="deletePerson()">Submit DELETE</button>
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       </section>
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     </section>