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在清晨的代码编辑器上#xff0c;一场新的挑战即将开始。程序员们肃立于安静的办公室#xff0c;眼神专注地盯着屏幕#xff0c;等待着编译器的一声提示。
随着编译器输出的激动人心的start!的提示#xff0c;战斗的序幕拉开了。Bug如潮水般涌来#x…目标
在清晨的代码编辑器上一场新的挑战即将开始。程序员们肃立于安静的办公室眼神专注地盯着屏幕等待着编译器的一声提示。
随着编译器输出的激动人心的start!的提示战斗的序幕拉开了。Bug如潮水般涌来程序员们快速调整键盘代码在屏幕上飞速滚动IDE中的光标如箭一般穿梭指引着他们找出每一个漏洞。代码的碰撞声、键盘的敲击声、鼠标的点击声交织成一曲激烈的交响乐扣人心弦。
在这个混乱的调试中每个程序员都展现出顶尖的技艺与冷静的勇气。他们忘我地追踪Bug代码间的逻辑错综复杂他们努力理清每一行代码的错误誓言修复每一个漏洞。长时间的疲劳和思考在他们身上无处不在但他们坚定不移因为他们知道这场战斗不仅仅是为了完成任务更是为了程序的稳定与优化。
随着代码的逐步修复胜利的曙光逐渐浮现。Bug一个个被排除程序稳定运行最终的Deploy Successful!的消息如太阳升起标志着任务的完成和程序的成功运行。
这场战斗不仅仅是一场技术上的挑战更是一场耐心与智慧的考验。他们用思维与代码铸就了成功的光辉为了项目的顺利进行为了自己对技术的追求与信仰他们勇敢地战斗着
开始挑战
打开idea
创建Spring项目 依赖就选springweb 创建完成首先在xml文件里配置依赖 ?xml version1.0 encodingUTF-8?
project xmlnshttp://maven.apache.org/POM/4.0.0 xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsdmodelVersion4.0.0/modelVersiongroupIdcom.bigdata1421/groupIdartifactIddemo/artifactIdversion0.0.1-SNAPSHOT/versionnamedemo/namedescriptiondemo/descriptionpropertiesjava.version1.8/java.versionproject.build.sourceEncodingUTF-8/project.build.sourceEncodingproject.reporting.outputEncodingUTF-8/project.reporting.outputEncodingspring-boot.version2.6.13/spring-boot.version/propertiesdependencies!-- lombok 快速封装实体类--dependencygroupIdorg.projectlombok/groupIdartifactIdlombok/artifactId/dependency!-- mybatis-plus 快速数据层开发--dependencygroupIdcom.baomidou/groupIdartifactIdmybatis-plus-boot-starter/artifactIdversion3.4.3/version/dependency!-- druid数据库连接池--dependencygroupIdcom.alibaba/groupIdartifactIddruid-spring-boot-starter/artifactIdversion1.2.6/version/dependency!-- mysql驱动--dependencygroupIdmysql/groupIdartifactIdmysql-connector-java/artifactIdversionruntime/version/dependency!-- web应用内嵌服务器--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependency!-- springboot起步依赖--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-test/artifactIdscopetest/scope/dependency/dependenciesdependencyManagementdependenciesdependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-dependencies/artifactIdversion${spring-boot.version}/versiontypepom/typescopeimport/scope/dependency/dependencies/dependencyManagementbuildpluginsplugingroupIdorg.apache.maven.plugins/groupIdartifactIdmaven-compiler-plugin/artifactIdversion3.8.1/versionconfigurationsource1.8/sourcetarget1.8/targetencodingUTF-8/encoding/configuration/pluginplugingroupIdorg.springframework.boot/groupIdartifactIdspring-boot-maven-plugin/artifactIdversion${spring-boot.version}/versionconfigurationmainClasscom.example.demo.DemoApplication/mainClassskiptrue/skip/configurationexecutionsexecutionidrepackage/idgoalsgoalrepackage/goal/goals/execution/executions/plugin/plugins/build/project
接着配置数据库连接信息 server:port: 80spring:datasource:druid:driver-class-name: com.mysql.jdbc.Driverurl: jdbc:mysql://localhost:3306/mybatis?serverTimezoneUTCusername: rootpassword: 123456# 配置mybatis-plus
mybatis-plus:global-config:db—config:table-prefix: tbl_
接下来
用lombok快速封装实体类 package com.example.demo.domain;import lombok.Data;Data
public class User {private String id;private String name;private String age;private String gender;
}用Mybatis-plus开发数据层接口 package com.example.demo.dao;import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.example.demo.domain.User;
import org.apache.ibatis.annotations.Mapper;Mapper
public interface UserDao extends BaseMapperUser {
}开发业务层
面向接口编程
先在接口定义了五个方法 package com.example.demo.service;import com.example.demo.domain.User;import java.util.List;public interface UserService {public boolean save(User user);public User getById(Integer id);public boolean update(User user);public boolean delete(Integer id);public ListUser getAll();}书写实现类
在注入数据层接口的同时
重写业务层方法 package com.example.demo.service.impl;import com.example.demo.dao.UserDao;
import com.example.demo.domain.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;Service
public class UserServiceImpl implements UserService {Autowiredprivate UserDao userDao;Overridepublic User getById(Integer id) {return userDao.selectById(id);}Overridepublic boolean save(User user) {return userDao.insert(user)0;}Overridepublic boolean update(User user) {return userDao.updateById(user)0;}Overridepublic boolean delete(Integer id) {return userDao.deleteById(id)0;}Overridepublic ListUser getAll() {return userDao.selectList(null);}
}创建控制器
controller层MVC类
与前端页面进行交互 package com.example.demo.controller;import com.example.demo.domain.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;import java.util.List;RestController
RequestMapping(/users)
public class UserController {//注入业务层Autowiredprivate UserService userService;//规定请求方式GetMappingpublic ListUser getAll(){return userService.getAll();}PostMappingpublic Boolean save(RequestBody User user){return userService.save(user);}PutMappingpublic Boolean update(RequestBody User user){return userService.update(user);}DeleteMapping({id})public Boolean delete(PathVariable Integer id){return userService.delete(id);}GetMapping({id})public User getById(PathVariable Integer id){return userService.getById(id);}}
这样一个基本的框架就已经完成
我们把springboot项目启动起来 我们这时候到postman里
发起请求 去进行一个查询
成功查询 挑战成功
耗时4分49秒
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Web后端开发
https://blog.csdn.net/qq_30500575/category_12624592.html?spm1001.2014.3001.5482
Web前端开发
https://blog.csdn.net/qq_30500575/category_12642989.html?spm1001.2014.3001.5482
数据库开发
https://blog.csdn.net/qq_30500575/category_12651993.html?spm1001.2014.3001.5482
项目实战
https://blog.csdn.net/qq_30500575/category_12699801.html?spm1001.2014.3001.5482
算法与数据结构
https://blog.csdn.net/qq_30500575/category_12630954.html?spm1001.2014.3001.5482
计算机基础
https://blog.csdn.net/qq_30500575/category_12701605.html?spm1001.2014.3001.5482
回忆录
https://blog.csdn.net/qq_30500575/category_12620276.html?spm1001.2014.3001.5482
