FreePhil / maven_basic

Java 17 with Maven and Springboot in VSCode

說明

使用 VS Code 開發 Springboot MVC 專案

Java 練習

使用 Intellij Community 2023.2

1. 主程式: /src/main/java/com.hengetech.simple_demo/exercises/ _01..._04
2. 測試程式: /src/test/java/com.hengetech.simple_demo/exercises/ _01..._04
3. 從測試程式可以看到輸入值及預期輸出值, 再把主程式完成以滿足測試的條件。
4. 分別完成主程式 exercises 內的程式, 程式的完成以測試程式是否通過測試為目的
5. 測試程式不用變動, 僅用來檢驗主程式的執行結果。程式完成後, 測試結果應該全部呈現綠色通過標誌。
6. 完成後的參考程式在位 branch: exercise_01_04, https://github.com/FreePhil/maven_basic/tree/exercise_01_04

軟體下載

• VS Code
• Java JDK 17

Java Jdk Setup

VS Code Plugin

• Java Extension Plugin
  

• Spring Boot Plugin
  

• Extra Plugins
  • 19 Great VS Code Extensions
  • 20 Best VS Code Extensions For 2023
  • Top 30 VS Code Extensions for Enhanced Programming

Spring Initializer

https://start.spring.io/

Query URL

• Web: http://localhost:8080/content1
• Web: http://localhost:8080/content1?name=HengeTech
• Rest API: http://localhost:8080/gi/fix-wired

Class Comparison

Java	C#
package com.hengetech.simple_demo.model; import lombok.Data; import lombok.NoArgsConstructor; import java.io.Serializable; @Data @NoArgsConstructor public class User implements Serializable { private String name; private int age; private String birthState; }	using System; using System.Text.Json.Serialization; namespace SimpleLog.Models { public class User: Object { [JsonPropertyName("username")] public string Name { get; set; } public int Age { get; set; } public DateTime Birthday { get; set; } } }
var user = new User(); user.setName("Henge"); var tempName = user.getName();	var user = new User(); user.Name = "Henge"; var tempName = user.Name;

Naming Conventions

• namespace: 全部小寫或_, i.e., com.henge.maven_basic
• class/interface: 大寫開頭 Pascal Style, i.e., Car, ToyotaCar, ToyotaCRVCar
• variable: 小寫開頭 Camel Style, i.e., userName, location, createdDate
• method/function: 小寫開頭 Camel Style, i.e., getUserName, findLocation
• interface

  public interface Car {
    String getMake();
  }
  

• class

  public class ToyotaCar implements Car {
    public String getMake() {
      return "Toyota";
    }
  }  
  
  or 
  
  public class CarImpl implements Car {
    ....
    ....
    ....
  }
  
  public class ToyotaCRVCar extends ToyotaCar {
    @Override public String getMake() {
      return "Toyota-CRV";
    }
  }
  

Dependency: pom.xml

<properties>
    <java.version>17</java.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>nz.net.ultraq.thymeleaf</groupId>
        <artifactId>thymeleaf-layout-dialect</artifactId>
        <version>3.3.0</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-configuration-processor</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>com.microsoft.sqlserver</groupId>
        <artifactId>mssql-jdbc</artifactId>
        <version>12.4.1.jre11</version>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>