vue大型專案高效能優化----想說愛你真的不容易
阿新 • • 發佈：2020-09-19
１.進行專案需求分析，建立資料庫模型並建立資料表，在此不做詳細描述；
２.建立基於Maven的Web專案，專案基本結構如下：
３.ｐｏｍ．ｘｍｌ所需的依賴如下：
<?xml version="1.0" encoding="UTF-8"?> <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"ｐｏｍ．ｘｍｌ> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>mybatis</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <junit.version>4.13</junit.version> <spring.version>5.2.8.RELEASE</spring.version> <mybatis.version>3.5.5</mybatis.version> <mybatis.spring.version>2.0.5</mybatis.spring.version> <commons-dbcp.version>1.4</commons-dbcp.version> <jstl.version>1.2</jstl.version> <log4j.version>1.2.17</log4j.version> <fastjson.version>1.2.73</fastjson.version> <slf4j.version>1.7.30</slf4j.version> <jackson.version>1.9.13</jackson.version> <commons-fileupload.version>1.4</commons-fileupload.version> <commons-io.version>2.7</commons-io.version> <commons-codec.version>1.15</commons-codec.version> <aspectjweaver.version>1.9.6</aspectjweaver.version> <druid.version>1.1.23</druid.version> </properties> <dependencies> <!--lombok--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.12</version> </dependency> <!-- Junit測試 --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> <scope>test</scope> </dependency> <!-- spring包 core、web、oxm、tx、jdbc、webmvc、aop、context、test --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis/spring包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>${mybatis.spring.version}</version> </dependency> <!-- 匯入Mysql資料庫連結jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.20</version> </dependency> <!-- 匯入dbcp/druid的jar包，用來在applicationContext.xml中配置資料庫 --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>${commons-dbcp.version}</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>${druid.version}</version> </dependency> <!-- JSTL標籤庫 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>${jstl.version}</version> </dependency> <!-- 日誌檔案管理包 --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.13.3</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.13.3</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-web</artifactId> <version>2.13.3</version> </dependency> <!-- 格式化物件，方便輸出日誌 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- json和bean之間相互轉換 --> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-core-asl</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>${jackson.version}</version> </dependency> <!-- 上傳元件包 --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>${commons-fileupload.version}</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>${commons-io.version}</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>${commons-codec.version}</version> </dependency> <!-- 面向切面程式設計 --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>${aspectjweaver.version}</version> </dependency> <!-- Servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.1</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build> </project>
４.日誌輸出檔案配置
### set log levels ###
log4j.rootLogger = DEBUG,Console,File
### 輸出到控制檯 ###
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%d{yy/MM/dd HH:mm:ss:SSS}]-[%t]-%p --- [%100.100l] --- %m%n
### 輸出到日誌檔案 ###
log4j.appender.File=org.apache.log4j.RollingFileAppender
log4j.appender.File.File=${project}src\\main\\resources\\out\\app.log
log4j.appender.File.MaxFileSize=10MB
log4j.appender.File.Threshold=ALL
log4j.appender.File.layout=org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern=[%d{yy/MM/dd HH:mm:ss:SSS}] - [%t] - %p --- [%100.100l] --- %m%n
ｌｏｇ４ｊ．ｐｒｏｐｅｒｔｉｅｓ
５.建立資料庫連線的基本配置檔案，建議使用外部配置，便於修改（此處所給的是阿里巴巴的德魯伊資料來源相關的ｊｄｂｃ配置）：
driverClassName=com.mysql.cj.jdbc.Driver url=jdbc:mysql://localhost:3306/hrm_db?useSSL=false&serverTimezone=GMT&allowPublicKeyRetrieval=true #使用者名稱不可鍵不可為username 否則 會報錯 Access denied for user 'KeLuo'@'localhost' (using password: YES) name=sahara password=12345 initialSize=100 maxActive=100 maxWait=3000 minIdle=5ｄｒｕｉｄ．properties
６.Ｍｙｂａｔｉｓ框架的基本配置（因與Spring整合，其內的環境配置均捨棄不寫，相關配置如資料來源等在Spring的基本配置檔案中配置）
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <!-- mybats的主配置檔案 --> <configuration> <!--配置延遲載入策略--> <settings> <!-- 全域性對映器啟用或禁用快取 <setting name="cacheEnable" value="true"/> --> <!-- 允許JDBC支援生成的鍵，需要適當的驅動。 --> <setting name="useGeneratedKeys" value="true"/> <!-- 配置預設的執行器 --> <setting name="defaultExecutorType" value="REUSE"/> <!--開啟延遲載入開關--> <setting name="lazyLoadingEnabled" value="true"/> <!--將積極載入改為訊息載入，即按需載入--> <setting name="aggressiveLazyLoading" value="false"/> <!-- 設定超時時間，決定驅動等待一個數據庫響應的時間 --> <setting name="defaultStatementTimeout" value="25000"/> </settings> <!--配置別名--> <typeAliases> <!--<typeAlias type="com.sahara.entity.Role" alias="Role" />--> <package name="com.sahara.domain"/> </typeAliases> <!--指定對映配置檔案（每個Dao獨立的配置檔案）的位置--> <mappers> <!--<mapper resource="com/sahara/mappers/IRoleDao.xml"></mapper>--> <package name="com.sahara.dao"/> </mappers> </configuration>ｍｙｂａｔｉｓＣｏｎｆｉｇ．ｘｍｌ
７.Spring的基本配置檔案：
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mybatis="http://mybatis.org/schema/mybatis-spring" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring/mybatis-spring.xsd"> <!-- 掃描base-package包下的java檔案，有Spring相關注解的類，則把這些類註冊為Spring的bean --> <context:component-scan base-package="com.sahara"/> <!-- 使用PropertyOverrideConfigurer後處理器載入資料來源引數 --> <context:property-placeholder location="classpath:druid.properties"/> <!-- 配置druid資料來源 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> <property name="driverClassName" value="${driverClassName}"/> <property name="url" value="${url}"/> <property name="username" value="${name}"/> <property name="password" value="${password}"/> <property name="initialSize" value="${initialSize}"/> <!-- 連線池最大數量 --> <property name="maxActive" value="${maxActive}"/> <!-- 獲取連線最大等待時間 --> <property name="maxWait" value="${maxWait}"/> <!-- 連線池最小空閒 --> <property name="minIdle" value="${minIdle}"/> </bean> <!-- 配置SqlSessionFactory，org.mybatis.spring.SqlSessionFactory是Mybatis社群開發用於整合Spring的bean --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" p:dataSource-ref="dataSource" p:configLocation="classpath:mybatisConfig.xml"/> <!-- 配置SqlSessionTemplate <bean class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg ref="sqlSessionFactory"/> </bean> --> <!-- --> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer" p:basePackage="com.sahara.dao" p:annotationClass="org.springframework.stereotype.Repository" p:sqlSessionFactoryBeanName="sqlSessionFactory" /> <!-- JDBC事務管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" p:dataSource-ref="dataSource"/> <!-- 啟用annotation註解方式事務管理 --> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>applicationContext.xml
８.Spring MVC的基本配置檔案
<?xml version="1.0" encoding="utf-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 自動掃描base-package包下用了@Controller註解的類並將其註冊為Spring的Controller --> <context:component-scan base-package="com.sahara.controller"/> <!-- 設定預設配置方案 --> <mvc:annotation-driven/> <!-- 檢視解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 字首 --> <property name="prefix"> <value>/WEB-INF/content</value> </property> <!-- 字尾 --> <property name="suffix"> <value>.jsp</value> </property> </bean> </beans>ｓｐｒｉｎｇｍｖｃ－config．ｘｍｌ
９.web配置如下：
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <listener> <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class> </listener> <filter> <filter-name>log4jServletFilter</filter-name> <filter-class>org.apache.logging.log4j.web.Log4jServletFilter</filter-class> </filter> <filter-mapping> <filter-name>log4jServletFilter</filter-name> <url-pattern>/*</url-pattern> <dispatcher>REQUEST</dispatcher> <dispatcher>FORWARD</dispatcher> <dispatcher>INCLUDE</dispatcher> <dispatcher>ERROR</dispatcher> </filter-mapping> <!-- end --> <!-- 配置Spring核心監聽器，預設會以/WEB-INF/applicationContext.xml作為配置檔案 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- contextConfigLocation引數用來指定Spring的配置檔案 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 定義Spring MVC的前端控制器 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-config.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 讓Spring MVC的前端控制器攔截所有請求 --> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 編碼過濾器 -->、 <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>ｗｅｂ．ｘｍｌ
１０.根據資料庫建立相應的實體類（可使用Lombok外掛以生成Getter與Setter方法）
１１.使用Ｍｙｂａｔｉｓ技術建立資料訪問層（包括介面及XML檔案）
１２.建立測試類對資料訪問層進行測試，測試類應引入相關配置，（若無＠Run With 與 ContextConfiguration註解，則其內部使用註解會報Null PointException）
package com.sahara.dao; import com.sahara.dao.UserDao; import com.sahara.domain.User; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import org.springframework.test.context.junit4.SpringRunner; import org.springframework.transaction.annotation.Transactional; @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration({"classpath:applicationContext.xml"}) @Transactional public class UserTest { @Autowired public UserDao userDao; @Test public void testselectById() { User user = userDao.selectById(1); System.err.println(user); } }
有關SSM與ｊｕｎｉｔ整合的配置請訪問：
https://www.cnblogs.com/gkaigk1987/articles/5367569.html
https://blog.csdn.net/CarryBest/article/details/71123493
https://blog.csdn.net/qq_32786873/article/details/56480880
暫時到這裡，更多學習之後會更新。