前言
项目组要搭建一个xxx的后台管理系统
技术选型：
项目：Spring Boot
数据库连接池：Druid
数据库：Oracle或者mysql
JS：VueJS
Html和CSS：Boostrap
一、搭建Spring Boot框架
step1
https://start.spring.io/ 进入此URL，在左边两栏配置自己的GroupID和ArtifactID，在右边栏配置自己需要的一些maven依赖，如web，mysql connector等。点击Generate Project下载配置好的项目zip包。
start
step2
如果你使用idea或者eclipse（需要安装spring boot插件）也可以快速生成一个项目，idea如下图
start
step3
由于项目比较简单，并发量不大，直接使用界面的mybatis generator 去https://github.com/zouzg/mybatis-generator-gui.git clone下来，maven编译后启动，连接你的数据库就可以使用它来快速生成dao层和mapper文件及model了。
generator
step4
数据库dao层，model，mappers文件都已经生成完了，我们应该连接一下数据库试试了，Druid数据库配置如下：
# 数据库访问配置spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver spring.datasource.url=jdbc:oracle:thin:@ip:port:oratest spring.datasource.username=xxx spring.datasource.password=xxx# 下面为连接池的补充设置，应用到上面所有数据源中spring.datasource.initialSize=5 spring.datasource.minIdle=5 spring.datasource.maxActive=20# 配置获取连接等待超时的时间spring.datasource.maxWait=60000# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒spring.datasource.timeBetweenEvictionRunsMillis=60000# 配置一个连接在池中最小生存的时间，单位是毫秒spring.datasource.minEvictableIdleTimeMillis=300000 spring.datasource.validationQuery=SELECT 1 FROM DUAL spring.datasource.testWhileIdle=truespring.datasource.testOnBorrow=falsespring.datasource.testOnReturn=false# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙spring.datasource.filters=stat,wall,log4j spring.datasource.logSlowSql=true#这里注意增加一个mappers文件的位置，不然会报错mybatis.mapperLocations=classpath*:mappers/*.xml
光有上面的配置还不行，还需要一个configuration配置，configuration相当于xml文件里面的bean配置，创建的时候直接复制粘贴就行了
import com.alibaba.druid.pool.DruidDataSource;import com.alibaba.druid.support.http.StatViewServlet;import com.alibaba.druid.support.http.WebStatFilter;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Value;import org.springframework.boot.web.servlet.FilterRegistrationBean;import org.springframework.boot.web.servlet.ServletRegistrationBean;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import javax.sql.DataSource;import java.sql.SQLException;@Configurationpublic class DruidConfig { private Logger logger = LoggerFactory.getLogger(DruidConfig.class); @Value("${spring.datasource.url}") private String dbUrl; @Value("${spring.datasource.username}") private String username; @Value("${spring.datasource.password}") private String password; @Value("${spring.datasource.driver-class-name}") private String driverClassName; @Value("${spring.datasource.initialSize}") private int initialSize; @Value("${spring.datasource.minIdle}") private int minIdle; @Value("${spring.datasource.maxActive}") private int maxActive; @Value("${spring.datasource.maxWait}") private int maxWait; @Value("${spring.datasource.timeBetweenEvictionRunsMillis}") private int timeBetweenEvictionRunsMillis; @Value("${spring.datasource.minEvictableIdleTimeMillis}") private int minEvictableIdleTimeMillis; @Value("${spring.datasource.validationQuery}") private String validationQuery; @Value("${spring.datasource.testWhileIdle}") private boolean testWhileIdle; @Value("${spring.datasource.testOnBorrow}") private boolean testOnBorrow; @Value("${spring.datasource.testOnReturn}") private boolean testOnReturn; @Value("${spring.datasource.filters}") private String filters; @Value("${spring.datasource.logSlowSql}") private String logSlowSql; @Bean
public ServletRegistrationBean druidServlet() {
ServletRegistrationBean reg = new ServletRegistrationBean();
reg.setServlet(new StatViewServlet());
reg.addUrlMappings("/druid/*");
reg.addInitParameter("loginUsername", username);
reg.addInitParameter("loginPassword", password);
reg.addInitParameter("logSlowSql", logSlowSql); return reg;
} @Bean
public FilterRegistrationBean filterRegistrationBean() {
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
filterRegistrationBean.setFilter(new WebStatFilter());
filterRegistrationBean.addUrlPatterns("/*");
filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
filterRegistrationBean.addInitParameter("profileEnable", "true"); return filterRegistrationBean;
} @Bean
public DataSource druidDataSource() {
DruidDataSource datasource = new DruidDataSource();
datasource.setUrl(dbUrl);
datasource.setUsername(username);
datasource.setPassword(password);
datasource.setDriverClassName(driverClassName);
datasource.setInitialSize(initialSize);
datasource.setMinIdle(minIdle);
datasource.setMaxActive(maxActive);
datasource.setMaxWait(maxWait);
datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
datasource.setValidationQuery(validationQuery);
datasource.setTestWhileIdle(testWhileIdle);
datasource.setTestOnBorrow(testOnBorrow);
datasource.setTestOnReturn(testOnReturn); try {
datasource.setFilters(filters);
} catch (SQLException e) {
logger.error("druid configuration initialization filter", e);
} return datasource;
}
}
作者：后厂村老司机
链接：https://www.jianshu.com/p/ae8fb33c7628
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