前言
項目組要搭建一個xxx的後臺管理系統
技術選型:
項目:Spring Boot
數據庫鏈接池:Druid
數據庫:Oracle或者mysql
JS:VueJS
Html和CSS:Boostrapcss
1、搭建Spring Boot框架
step1
https://start.spring.io/ 進入此URL,在左邊兩欄配置本身的GroupID和ArtifactID,在右邊欄配置本身須要的一些maven依賴,如web,mysql connector等。點擊Generate Project下載配置好的項目zip包。
java
step2
若是你使用idea或者eclipse(須要安裝spring boot插件)也能夠快速生成一個項目,idea以下圖
step3
因爲項目比較簡單,併發量不大,直接使用界面的mybatis generator 去 https://github.com/zouzg/mybatis-generator-gui.git clone下來,maven編譯後啓動,鏈接你的數據庫就可使用它來快速生成dao層和mapper文件及model了。
step4
數據庫dao層,model,mappers文件都已經生成完了,咱們應該鏈接一下數據庫試試了,Druid數據庫配置以下:
# 數據庫訪問配置 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 # 下面爲鏈接池的補充設置,應用到上面全部數據源中 spring.datasource.initialSize=5 spring.datasource.minIdle=5 spring.datasource.maxActive=20 # 配置獲取鏈接等待超時的時間 spring.datasource.maxWait=60000 # 配置間隔多久才進行一次檢測,檢測須要關閉的空閒鏈接,單位是毫秒 spring.datasource.timeBetweenEvictionRunsMillis=60000 # 配置一個鏈接在池中最小生存的時間,單位是毫秒 spring.datasource.minEvictableIdleTimeMillis=300000 spring.datasource.validationQuery=SELECT 1 FROM DUAL spring.datasource.testWhileIdle=true spring.datasource.testOnBorrow=false spring.datasource.testOnReturn=false # 配置監控統計攔截的filters,去掉後監控界面sql沒法統計,'wall'用於防火牆 spring.datasource.filters=stat,wall,log4j spring.datasource.logSlowSql=true #這裏注意增長一個mappers文件的位置,否則會報錯 mybatis.mapperLocations=classpath*:mappers/*.xml
光有上面的配置還不行,還須要一個configuration配置,configuration至關於xml文件裏面的bean配置,建立的時候直接複製粘貼就好了mysql
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; @Configuration public 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; } }
不出意外你上面的configuration應該會飄紅,由於你沒有配置pom文件的依賴。把下面的依賴引入進去,若是你使用的是mysql的connector,就引入mysql的依賴git
<dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.5</version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <!--下面是oracle的鏈接器--> <dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc6</artifactId> <version>12.1.0.1-atlassian-hosted</version> <exclusions> <exclusion> <groupId>cglib</groupId> <artifactId>cglib</artifactId> </exclusion> </exclusions> </dependency> <!--下面是mysql的鏈接器--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency>
覺得上面配置結束就能夠開心的馬騮了?NONONO!還有個坑呢,主文件裏須要添加@MapperScan,參數爲你dao接口的路徑,不然就會報bean的相關異常哦!github
@MapperScan("com.netease.paygateway.dao") @SpringBootApplication public class PaygatewayApplication { public static void main(String[] args) { SpringApplication.run(PaygatewayApplication.class, args); } }
step4
寫一個Junit測試類測一測,在main目錄的兄弟目錄test下建立一個測試類,也能夠在某個dao類直接使用ctrl+shift+T(idea),在類上右鍵新建junit(eclipse)。注意添加兩個註解,@SpringBootTest裏面的註解就是你的主類Application。web
@RunWith(SpringRunner.class) @SpringBootTest(classes = PaygatewayApplication.class) public class ChargeServiceTest { @Autowired ChargeDAO chargeDAO; @Test public void getChargeVOList() { ChargeVOExample example = new ChargeVOExample(); example.createCriteria().andChargeIdEqualTo("2018052415GCR30503164"); List<ChargeVO> result = chargeDAO.selectByExample(example); System.out.println(result); } }
Druid的精簡化配置
step1
添加依賴 Druid各版本Starterspring
<dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.10</version> </dependency>
step2
application.yml配置sql
spring: application: name: springboot-test-exam1 datasource: # 使用阿里的Druid鏈接池 type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.jdbc.Driver # 配置jdbc url: jdbc:mysql://localhost:3306/dbname?useSSL=false&characterEncoding=utf8 username: root password: root # 配置鏈接池 druid: # 初始化大小,最小,最大 initial-size: 5 min-idle: 5 maxActive: 20 # 配置獲取鏈接等待超時的時間 maxWait: 60000 # 配置間隔多久才進行一次檢測,檢測須要關閉的空閒鏈接,單位是毫秒 timeBetweenEvictionRunsMillis: 60000 # 配置一個鏈接在池中最小生存的時間,單位是毫秒 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false # 打開PSCache,而且指定每一個鏈接上PSCache的大小 poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 20 # 配置監控統計攔截的filters,去掉後監控界面sql沒法統計,'wall'用於防火牆 filters: stat,wall,log4j # 經過connectProperties屬性來打開mergeSql功能;慢SQL記錄 connectionProperties: druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000 # 配置DruidStatFilter web-stat-filter: enabled: true url-pattern: "/*" exclusions: "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*" # 配置DruidStatViewServlet stat-view-servlet: url-pattern: "/druid/*" # IP白名單(沒有配置或者爲空,則容許全部訪問) allow: 127.0.0.1,192.168.163.1 # IP黑名單 (存在共同時,deny優先於allow) deny: 192.168.1.73 # 禁用HTML頁面上的「Reset All」功能 reset-enable: false # 登陸名 login-username: admin # 登陸密碼 login-password: 123456
properties版本數據庫
server.port=8080 spring.application.name=test spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/databaseName?useSSL=false&characterEncoding=utf8 spring.datasource.username=root spring.datasource.password=root spring.datasource.druid.initial-size=5 spring.datasource.druid.min-idle=5 spring.datasource.druid.maxActive=20 spring.datasource.druid.maxWait=60000 spring.datasource.druid.timeBetweenEvictionRunsMillis=60000 spring.datasource.druid.minEvictableIdleTimeMillis=300000 spring.datasource.druid.validationQuery=SELECT 1 FROM DUAL spring.datasource.druid.testWhileIdle=true spring.datasource.druid.testOnBorrow=false spring.datasource.druid.testOnReturn=false spring.datasource.druid.poolPreparedStatements=true spring.datasource.druid.maxPoolPreparedStatementPerConnectionSize=20 spring.datasource.druid.filters=stat,wall,log4j spring.datasource.druid.connectionProperties=druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000 spring.datasource.druid.web-stat-filter.enabled=true spring.datasource.druid.web-stat-filter.url-pattern=/* spring.datasource.druid.web-stat-filter.exclusions=*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/* spring.datasource.druid.stat-view-servlet.url-pattern=/druid/* spring.datasource.druid.stat-view-servlet.allow=127.0.0.1,192.168.163.1 spring.datasource.druid.stat-view-servlet.deny=192.168.1.73 spring.datasource.druid.stat-view-servlet.reset-enable=false spring.datasource.druid.stat-view-servlet.login-username=admin spring.datasource.druid.stat-view-servlet.login-password=123456
step3
訪問:http://localhost:8080/druid/,登陸名:admin,密碼123456springboot