作者:fyupeng
技术专栏:☞ https://github.com/fyupeng
项目地址:☞ https://github.com/fyupeng/distributed-blog-system-api
项目预览地址:☞ 博客第二天
给读者
现在环境各位小伙伴是不是都配好了呢?
那么接下来就是真正的开发了,Idea官网下载链接没给你们,现在给你们:https://youtrack.jetbrains.com/articles/IDEA-A-21/Release-Notes
我下载的是2021.3.2
的,对应的“持续学习”开发jar包
天翼云盘 珍藏美好生活 家庭云|网盘|文件备份|资源分享 (访问码:6in8)
推荐的Idea配置:可能是最好用的 IDEA 设置_张志帅的博客-CSDN博客
“持续学习”配置文件:
-javaagent:D:\Users\fyp01\ja-netfilter\ja-netfilter.jar
两种方式:
将下载下来的包放在合适的位置,对ja-netfilter.jar
按住Shift
右键鼠标复制路径,如果可以打开Idea
开发工具的话,去help
–>Edit Custom VM Options
将内容复制进去。
打开Idea
安装目录bin下的idea64.exe.vmoptions
文件,复制“持续学习”配置信息进去,重新打开即可。
煲鸡汤时间结束,到了开发时间
打开Idea
手动创建一个maven
空项目,要包含几个模块文件夹
File
--> New
--> Project
--> Maven
--> 选择对应的Project SDK
(即JDK
) --> Next
--> Name
--> Localtion
--> GroupId
(com.fyupeng
)–> ArtifactId
(fyupeng-blog
) --> Version
(1.0-SNATSHOT
)
– fyupeng-blog
– fyupeng-blog-commons
– fyupeng-blog-pojo
– fyupeng-blog-mapper
– fyupeng-blog-service
– fyupeng-blog-api
创建1个Project
5个Model
,model
是在File
--> New
--> Model
下
操作完成之后检测无错误后,打开根目录pom.xml
– fyupeng-blog
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blogartifactId>
<version>0.0.1-SNAPSHOTversion>
<packaging>pompackaging>
<name>fyupeng-博客平台实战name>
<description>:
Web开发
maven
springmvc
springboot
mybatis
mybatis-pagehelper
redis
druid
mariadb/mysql
mongodb
redis
description>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>1.5.12.RELEASEversion>
<relativePath/>
parent>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
<java.version>1.8java.version>
<mysql.version>8.0.25mysql.version>
properties>
<modules>
<module>fyupeng-blog-commonmodule>
<module>fyupeng-blog-pojomodule>
<module>fyupeng-blog-mappermodule>
<module>fyupeng-blog-servicemodule>
<module>fyupeng-blog-apimodule>
modules>
project>
– fyupeng-blog-commons
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blogartifactId>
<version>0.0.1-SNAPSHOTversion>
parent>
<artifactId>fyupeng-blog-commonartifactId>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starterartifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-loggingartifactId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-log4jartifactId>
<version>1.3.8.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-aopartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
<exclusions>
exclusions>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-configuration-processorartifactId>
<optional>trueoptional>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-thymeleafartifactId>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>1.1.0version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druid-spring-boot-starterartifactId>
<version>1.1.0version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>${mysql.version}version>
dependency>
<dependency>
<groupId>org.mybatis.spring.bootgroupId>
<artifactId>mybatis-spring-boot-starterartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>tk.mybatisgroupId>
<artifactId>mapper-spring-boot-starterartifactId>
<version>1.2.4version>
dependency>
<dependency>
<groupId>com.github.pagehelpergroupId>
<artifactId>pagehelper-spring-boot-starterartifactId>
<version>1.2.3version>
dependency>
<dependency>
<groupId>commons-codecgroupId>
<artifactId>commons-codecartifactId>
<version>1.11version>
dependency>
<dependency>
<groupId>org.apache.commonsgroupId>
<artifactId>commons-lang3artifactId>
<version>3.4version>
dependency>
<dependency>
<groupId>commons-iogroupId>
<artifactId>commons-ioartifactId>
<version>1.3.2version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.4.0version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>2.4.0version>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-data-redisartifactId>
dependency>
<dependency>
<groupId>redis.clientsgroupId>
<artifactId>jedisartifactId>
<version>2.9.0version>
dependency>
<dependency>
<groupId>org.springframework.datagroupId>
<artifactId>spring-data-redisartifactId>
<version>1.8.7.RELEASEversion>
dependency>
dependencies>
project>
– fyupeng-blog-pojo
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blogartifactId>
<version>0.0.1-SNAPSHOTversion>
parent>
<artifactId>fyupeng-blog-pojoartifactId>
<dependencies>
<dependency>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blog-commonartifactId>
<version>0.0.1-SNAPSHOTversion>
dependency>
dependencies>
project>
– fyupeng-blog-mapper
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blogartifactId>
<version>0.0.1-SNAPSHOTversion>
parent>
<artifactId>fyupeng-blog-mapperartifactId>
<dependencies>
<dependency>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blog-pojoartifactId>
<version>0.0.1-SNAPSHOTversion>
dependency>
dependencies>
project>
– fyupeng-blog-service
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blogartifactId>
<version>0.0.1-SNAPSHOTversion>
parent>
<artifactId>fyupeng-blog-serviceartifactId>
<dependencies>
<dependency>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blog-mapperartifactId>
<version>0.0.1-SNAPSHOTversion>
dependency>
dependencies>
project>
– fyupeng-blog-api
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blogartifactId>
<version>0.0.1-SNAPSHOTversion>
parent>
<artifactId>fyupeng-blog-apiartifactId>
<dependencies>
<dependency>
<groupId>com.fyupenggroupId>
<artifactId>fyupeng-blog-serviceartifactId>
<version>0.0.1-SNAPSHOTversion>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<version>1.5.12.RELEASEversion>
plugin>
plugins>
build>
project>
commons
主要包含公用的api
包
可以直接下载我经常使用到的,链接:GitHub - fyupeng/SoftWare: 软件下载地址
开发第一个接口:
在api模块中的资源目录(resources
)中添加文件application.properties
文件
加入两行配置信息:
application.properties
############################################################
#
# Server
#
############################################################
server.port=8080
############################################################
# Server - tomcat
############################################################
server.tomcat.uri-encoding=UTF-8
添加日志文件,使日志生效
log4j.properties
log4j.rootLogger=INFO,console,dailyFile
# TODO \u53d1\u5e03\u5230\u963f\u91cc\u4e91\u8bb0\u5f97\u6dfb\u52a0\uff0c\u53e6\u5916\u63a7\u5236\u53f0\u4e0d\u8f93\u51fa(\u53ea\u8f93\u51fawarn\u6216\u8005error\u4fe1\u606f)
# TODO 发布到阿里云记得添加,另外控制台不输出(只输出warn或者error信息)
#INFO,console,dailyFile
#log4j.logger.org.mybatis = DEBUG
log4j.logger.com.tony.mapper=INFO
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.encoding=UTF-8
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%l] - [%p] %m%n
# \u5b9a\u671f\u6eda\u52a8\u65e5\u5fd7\u6587\u4ef6\uff0c\u6bcf\u5929\u90fd\u4f1a\u751f\u6210\u65e5\u5fd7
# 定期滚动日志文件,每天都会生成日志
log4j.appender.dailyFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.dailyFile.encoding=UTF-8
log4j.appender.dailyFile.Threshold=INFO
# TODO \u672c\u5730\u65e5\u5fd7\u5730\u5740\uff0c\u6b63\u5f0f\u73af\u5883\u8bf7\u52a1\u5fc5\u5207\u6362\u4e3a\u963f\u91cc\u4e91\u5730\u5740
# TODO 本地日志地址,正式环境请务必切换为阿里云地址
log4j.appender.dailyFile.File=/fyupeng/logs/blog-web/log.log4j
log4j.appender.dailyFile.DatePattern='.'yyyy-MM-dd
log4j.appender.dailyFile.layout=org.apache.log4j.PatternLayout
log4j.appender.dailyFile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%l] - [%p] %m%n
一般配置文件都使用unicode
编码,到需要的时候再去解码,否则很容易出现乱码情况
提供Unicode
在线编解码工具:在线Unicode编码转换-Unicode和ASCII在线互转-中文转Unicode工具
api
中新建controller
目录
BasicController
主要用来配置基本的静态变量,供给继承它的子类Controller
使用
package com.fyupeng.controller;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class BasicController {
}
HelloController
第一个接口
package com.fyupeng.controller;
import com.fyupeng.pojo.User;
import com.fyupeng.utils.BlogJSONResult;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping(value = "/HelloWorld")
@Api(value = "第一个HelloWorld接口", tags = {"第一个HelloWorld接口的controller"})
public class HelloWorldController extends BasicController{
@ApiOperation(value = "helloWorld", notes = "helloWorld的接口")
@RequestMapping(value = "/helloWorld")
public BlogJSONResult helloWorld() {
User user = new User();
user.setName("小明");
user.setAge(21);
user.setSex("男");
return BlogJSONResult.ok(user);
}
}
接口文档:http://localhost:8080/swagger-ui.html
访问第一个接口:
http://localhost:8080/HelloWorld/helloWorld
编辑切换为居中
添加图片注释,不超过 140 字(可选)
这里提供一个CSDN
的在线序列化插件:CSDN开发助手
接下来准备要做的事:逆向工程(顾名思义就是懒得自己写pojo
层和mapper
层)
逆向工程链接:GitHub - fyupeng/mybatis-generator: mybatis逆向工程
CREATE USER `fyupeng`@`%` IDENTIFIED WITH mysql_native_password BY '******';
grant all privileges on fyupeng_blog.* to 'fyupeng'@'%' with grant option
with grant option
: 多次授权可以叠加权限
这里可以使用'用户名'@'主机'
授权的时候,不可以使用'数据库.'表'
,可以使用数据库名@‘表’
逆向工程创建User
表,我使用的是Navicat
逆向工程我提供了两种:
面向接口使用的是maven
项目
只需要配置jdbc
相关连接和数据库表即可
DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<context id="MysqlContext" targetRuntime="MyBatis3Simple" defaultModelType="flat">
<property name="beginningDelimiter" value="`"/>
<property name="endingDelimiter" value="`"/>
<plugin type="tk.mybatis.mapper.generator.MapperPlugin">
<property name="mappers" value="com.imooc.utils.MyMapper"/>
plugin>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/fyupeng_blog"
userId="****"
password="****">
<property name="useUnicode" value="true"/>
<property name="characterEncoding" value="utf-8"/>
<property name="serverTimezone" value="UTC"/>
<property name="nullCatalogMeansCurrent" value="true"/>
jdbcConnection>
<javaModelGenerator targetPackage="com.fyupeng.pojo" targetProject="mybatis-generatorConfig/src/main/java"/>
<sqlMapGenerator targetPackage="mapper" targetProject="mybatis-generatorConfig/src/main/resources"/>
<javaClientGenerator targetPackage="com.fyupeng.mapper" targetProject="mybatis-generatorConfig/src/main/java"
type="XMLMAPPER"/>
<table tableName="user">table>
context>
generatorConfiguration>
面向配置使用的是xml
配置文件
只需要配置jdbc
相关连接和数据库表即可
DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<context id="testTables" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressAllComments" value="true" />
commentGenerator>
<jdbcConnection
driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/fyupeng_blog" userId="****"
password="****">
<property name="nullCatalogMeansCurrent" value="true"/>
jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
javaTypeResolver>
<javaModelGenerator
targetPackage="com.fyupeng.pojo"
targetProject="./mybatisGeneratorSqlmapper/src/main/java">
<property name="enableSubPackages" value="false" />
<property name="trimStrings" value="true" />
javaModelGenerator>
<sqlMapGenerator
targetPackage="com.fyupeng.mapper"
targetProject="./mybatisGeneratorSqlmapper/src/main/java">
<property name="enableSubPackages" value="false" />
sqlMapGenerator>
<javaClientGenerator
type="XMLMAPPER"
targetPackage="com.fyupeng.mapper"
targetProject="./mybatisGeneratorSqlmapper/src/main/java">
<property name="enableSubPackages" value="false" />
javaClientGenerator>
<table schema="" tableName="user">table>
context>
generatorConfiguration>
最大化压缩开发成本,我采用面向接口开发
先把生成的几个文件放到对应的model
中,util下的MyMapper
放到commons
包下的utils
下
配置数据库jdbc
连接池,需要到application.properties
中添加配置信息:
spring.datasource.url=jdbc:mysql://localhost:3306/fyupeng_blog?useUnicode=true&characterEncoding=utf8&useJDBCComplliantTimezoneShift=true\
&useLegacyDatetimeCode=false&serverTimezone=UTC
spring.datasource.username=fyupeng
spring.datasource.password=*****
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.druid.initial-size=1
spring.datasource.druid.min-idle=1
spring.datasource.druid.max-active=20
spring.datasource.druid.test-on-borrow=true
spring.datasource.druid.stat-view-servlet.allow=true
然后也有mapper.xml文件,放到mapper
模块的resources
里mapper
文件夹下
这个文件夹需要告诉springboot
去扫描并将实例对象放到spring
容器中,所以可以在application.xml
添加配置信息:
############################################################
#
# mybatis 配置
#
############################################################
# mybatis 配置
mybatis.type-aliases-package=com.fyupeng.pojo
mybatis.mapper-locations=classpath:mapper/*.xml
# 通用 Mapper 配置
mapper.mappers=com.fyupeng.utils.MyMapper
mapper.not-empty=false
mapper.identity=MYSQL
# 分页插件配置
pagehelper.helperDialect=mysql
pagehelper.supportMethodsArguments=true
pagehelper.params=count=countSql
初步配置完成
用来测试MySQL
数据库
@ApiOperation(value = "testMysql", notes = "测试数据库的接口")
@RequestMapping(value = "/testMysql")
public BlogJSONResult testMysql() {
User user = new User();
user.setId(Sid.next());
user.setName("小明");
user.setAge(21);
user.setSex("男");
userMapper.insert(user);
return BlogJSONResult.ok();
}
出现数据表乱码,导致ERROR 1366 (HY000): Incorrect string value: '\xE5\xB0\x8F\xE6\x98\x8E' for column 'name' at row 1
可使用下面方法设置,所有字段都会生效
alter table user convert to character set utf8;
数据库的话在创建时附加default charset=utf8
即可解决乱码问题
编辑切换为居中
数据表
更精彩的在第三天,嗝屁小孩纸正持续跟进中…
出现任何bug
可随时联系作者,我会第一时间为你们解决疑惑,大家一起干完这一票,就再一起去干其他更有趣的事哈哈。
顺便分享给各位已经完成的博客,这次开发算是第二次开发,主要还是把自己学到的分享出去,当然自己肯定也会有所收获!
明天就把链接给大家,希望明天见!
顺便给分享自己几年来做的技术专栏:https://github.com/fyupeng