專案實戰介面開發SpringBoot

hqq的進階日記發表於2023-12-14
Spring Boot

目錄

一、springboot官方demo開發

  1. 依賴包和父：pom.xml
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.14</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>2.7.14</version>
    </dependency>
</dependencies>
  1. 新建 SampleController.java
import org.springframework.boot.*;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@EnableAutoConfiguration
public class SampleController {
    @RequestMapping("/")
    @ResponseBody
    String home(){
        return "Hello World!";
    }

    public static void main(String[] args) {
        SpringApplication.run(SampleController.class,args);
    }
}
  1. 執行結果

    說明：內建了web伺服器

二、使用SpringBoot開發get方法介面

返回cookie資訊的get介面開發

  1. 新建Application.java 入口
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan("com.course.server")
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class,args);
    }
}
  1. com.course.server 新建MyGetMethod.java
@RestController
public class MyGetMethod{
    @RequestMapping(value="/getCookies",method=RequestMethod.GET)
    public String getCookies(){
        return "恭喜你獲得cookies資訊成功";    
    }
}
  1. Resource下新建檔案：application.properties
server.port=${port:8888}

  1. 啟動後訪問

  2. 獲得cookies
    修改com.course.server.MyGetMethod.java 程式碼：

package com.course.server;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;

@RestController
public class MyGetMethod {
    @RequestMapping(value = "/getCookies",method= RequestMethod.GET)
    public String getCookies(HttpServletResponse response){
        // HttpServletRequest 裝請求資訊得類
        // HttpServletResponse 裝響應資訊得類
        Cookie cookie = new Cookie("login", "true");
        response.addCookie(cookie);
        return "恭喜你獲得cookies資訊成功";
    }
}

執行：

三、一個要求攜帶cookie資訊訪問的get介面開發

  1. MyGetMethod.java 新增方法：
@RestController
public class MyGetMethod{
    @RequestMapping(value="/get/with/Cookies",method=RequestMethod.GET)
    public String getWithCookies(HttpServletRequest request){
        // HttpServletRequest 裝請求資訊的類
        // HttpServletResponse 裝響應資訊的類
        Cookie[] cookies = request.getCookies();
        if(Objects.isNull(cookies)){
            return "你必須攜帶cookies資訊來";        
        }
        for(Cookie cookie:cookies){
            if(cookie.getName().equals("login") &&
             cookie.getValue().equals("true")){
                 return "恭喜你訪問成功！";           
             }                
        }
        return "你必須攜帶cookies資訊來";    
    }
}
  1. Jemeter訪問
    1）加一個執行緒組
    2）加一個HTTP請求
    3）加一個HTTP Cookie管理器

    4）加一個檢視結果樹

四、需要攜帶引數的get請求兩種開發方式

4.1 方式1：url：key=value&key=value

@RestController
public class MyGetMethod{
    @RequestMapping(value="/get/with/param",method=RequestMethod.GET)
    public Map<String,Integer> getList(@RequestParam Integer start,
                                       @RequestParam Integer end){
        Map<String,Integer> myList = new HashMap<>();
        myList.put("鞋",500);
        myList.put("衣服",200);
        myList.put("乾脆面",1);
        return myList;                                                                 
    }
}

結果：

4.2 方式2：url：ip:port/get/with/param/10/20

@RequestMapping(value = "/get/with/param/{start}/{end}",method = RequestMethod.GET)
public Map<String,Integer> getList(@RequestParam(required = false) Integer start,
                                   @RequestParam(required = false) Integer end){
    Map<String,Integer> myList = new HashMap<>();
    myList.put("鞋",500);
    myList.put("衣服",200);
    myList.put("乾脆面",1);
    return myList;
}

結果：

五、使用SpringBoot開發post方法介面

  1. 新增MyPostMethod.java
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.Cookie;

@RestController
@RequestMapping("/v1")
public class MyPostMethod{
    // 這個變數用來裝我們的cookies資訊
    private static Cookie cookie;
    // 使用者登入成功獲取到cookies，然後再訪問其他介面獲取到列表
    
    @RequestMapping(value="/login",method=RequestMethod.POST)
    @ApiOperation(value="登陸介面，成功後獲取cookies資訊",httpMethod="POST")
    public String login(HttpServletResponse response,
                        @RequestParam(value="userName",required=true) String userName,
                        @RequestParam(value="password",required=true) String password){
        if(userName.equals("zhangsan")&&password.equals("123456")){
            cookie = new Cookie("login","true");
            response.addCookie(cookie);
            return "恭喜你登入成功了！";
        }
        return "使用者名稱或者密碼錯誤！";
    }
}
  1. 在Jmeter中測試該介面



六、Cookie驗證和返回使用者列表的post介面開發

  1. 新增lombok依賴
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>RELEASE</version>
    <scope>compile</scope>
</dependency>
  1. 新增類 com/course/bean/User.java
package com.course.bean;
import lombok.Data;

@Data
public class User {
    private String userName;
    private String password;
    private String name;
    private String age;
    private String sex;
}
  1. 新增類 com/course/server/MyPostMethod.java
package com.course.server;
import com.course.bean.User;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@RestController
@RequestMapping("/v1")
public class MyPostMethod {
    // 這個變數用來裝我們的cookies資訊
    private static Cookie cookie;
    // 使用者登入成功獲取到cookies，然後再訪問其他介面獲取到列表

    @RequestMapping(value="/login",method= RequestMethod.POST)
    public String login(HttpServletResponse response,
                        @RequestParam(value="userName",required=true) String userName,
                        @RequestParam(value="password",required=true) String password){
        if(userName.equals("zhangsan")&&password.equals("123456")){
            cookie = new Cookie("login","true");
            response.addCookie(cookie);
            return "恭喜你登入成功了！";
        }
        return "使用者名稱或者密碼錯誤！";
    }

    @RequestMapping(value="/getUserList",method = RequestMethod.POST)
    public String getUserList(HttpServletRequest request,
                            @RequestBody User u){
        // 獲取cookies
        Cookie[] cookies = request.getCookies();
        // 驗證cookies是否合法
        for (Cookie c:cookies){
            if (c.getName().equals("login") && c.getValue().equals("true") && u.getUserName().equals("zhangsan") && u.getPassword().equals("123456")){
                User user = new User();
                user.setName("lisi");
                user.setAge("14");
                user.setSex("man");
                return user.toString();
            }
        }
        return "引數不合法";
    }
}
  1. 啟動Application.java
  2. 使用Jemeter測試介面
    1）新建執行緒組
    2）新增HTTP Header Manager

    3）新增HTTP Cookie Manager

    4）新增HTTP Request

    5）新增結果樹

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