springboot敏捷开发KTLX

添加接口扫描

3.2 easycode

Test connected Download… ok

四 boot整合其他

4.1 整合定时器

在线Cron表达式生成器https://cron.qqe2.com/

十秒钟执行一次：

App ：

package com.aaa.haha;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication //haha-common pom.xml spring-boot-starter-web
@MapperScan("com.aaa.haha.mapper") //扫包 否则将会com.aaa.haha.mapper.StudentMapper not fount
@EnableScheduling //开启定时任务
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class,args);
    }

}

MySchdule ：

package com.aaa.haha.schedule;

import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class MySchdule {

    @Scheduled(fixedDelay = 10000) //10秒
    public void haha() {
        System.out.println("你好 该吃药了");
    }
}

每分钟的第五秒执行一次：

MySchdule ：

package com.aaa.haha.schedule;

import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class MySchdule {

//    @Scheduled(fixedDelay = 10000) //10秒
//    public void haha() {
//        System.out.println("你好 该吃药了");
//    }

    @Scheduled(cron = "5 * * * * ?") //每分钟的第5秒执行一次
    public void haha() {
        System.out.println("你好 该吃药了");
    }
}

4.2 异步任务

异步操作：

StudentService ：

package com.aaa.haha.service;

import com.aaa.haha.entity.Student;

import java.util.List;

public interface StudentService {
    List<Student> listAllStudent();
    void sendCode();
}

StudentServiceImpl ：

package com.aaa.haha.service.impl;

import com.aaa.haha.entity.Student;
import com.aaa.haha.mapper.StudentMapper;
import com.aaa.haha.service.StudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

@Service
public class StudentServiceImpl implements StudentService {
    @Resource
    private StudentMapper studentMapper;

    @Override
    public List<Student> listAllStudent() {
        return studentMapper.listAllStudent();
    }

    @Override
    @Async
    public void sendCode() {

        System.out.println("开始发送");
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("发送成功");
    }

}

App ：

package com.aaa.haha;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication //haha-common pom.xml spring-boot-starter-web
@MapperScan("com.aaa.haha.mapper") //扫包 否则将会com.aaa.haha.mapper.StudentMapper not fount
@EnableScheduling //开启定时任务
@EnableAsync  //开启异步
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class,args);
    }

}

StudentController ：

package com.aaa.haha.controller;

import com.aaa.haha.domain.AjaxResult;
import com.aaa.haha.service.StudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("student")
public class StudentController {
    @Autowired
    private StudentService studentService;

    @RequestMapping("list")
    public AjaxResult list(){
        return AjaxResult.success( studentService.listAllStudent());
    }

    @RequestMapping("tongbu")
    public String tongbu(){
        studentService.sendCode();
        return "同步操作";
    }

    @RequestMapping("yibu")
    public String yibu(){
        studentService.sendCode();
        return "异步操作";
    }
}

同步操作

将（@EnableAsync //异步 @Async ）注解去掉，访问：http://localhost:8090/boot/student/tongbu 即使同步操作。

4.9 Knife4j

错误：Failed to start bean ‘documentationPluginsBootstrapper‘； nested exception is java.lang.NullPoi

解决：在properties配置文件中添加如下代码：(如果是yml配置，则参考以下链接)

spring.mvc.pathmatch.matching-strategy=ant_path_matcher

参考：
解决方案之‘Failed to start bean ‘documentationPluginsBootstrapper‘； nested exception is java.lang.NullPoi
https://blog.csdn.net/hadues/article/details/123753888

spring boot配置数据库连接
https://blog.csdn.net/weixin_41463944/article/details/122710121

http://localhost:8090/doc.html#/home

ApiPost7

list GetMapping:

添加 PostMapping：

获取 GetMapping

删除 DeleteMapping：

4.3 整合事务

Mybatis 开启控制台打印sql语句

Mybatis 开启控制台打印sql语句
https://blog.csdn.net/qq_37495786/article/details/82799910

入参校验

整合全局异常

整合logback日志

拦截器

SpringBoot 拦截器的简单配置及用法
https://blog.csdn.net/qq_36014509/article/details/81453291

整合模板引擎（了解）

springboot项目父子多模块打jar包

参考：springboot项目父子多模块打jar包
https://blog.csdn.net/Peanutfight/article/details/116401877?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522166574389716781432959429%2522%252C%2522scm%2522%253A%252220140713.130102334…%2522%257D&request_id=166574389716781432959429&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduend~default-1-116401877-null-null.142^v56pc_rank_34_2,201^v3control_1&utm_term=springboot%E7%88%B6%E5%AD%90%E9%A1%B9%E7%9B%AE%E6%89%93%E5%8C%85&spm=1018.2226.3001.4187

【Maven打包报错解决方案】Using ‘UTF-8‘ encoding to copy filtered resources.
https://blog.csdn.net/weixin_44985880/article/details/119844661

 <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
 
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <!-- 指定该Main Class为全局的唯一入口 -->
                    <mainClass>com.example.main.MainApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal><!--可以把依赖的包都打包到生成的Jar包中-->
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <!--【Maven打包报错解决方案】Using ‘UTF-8‘ encoding to copy filtered resources.-->
            <!--https://blog.csdn.net/weixin_44985880/article/details/119844661-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.0.2</version>
            </plugin>
        </plugins>
    </build>