pom.xml

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.yun</groupId>
    <artifactId>webstart-simple</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>webstart-simple</name>
    <url>http://localhost:8080/webstart_simple/users</url>
    <description>springmvc + spring + mybatis 整合練習</description>

    <properties>

        <!-- ==================== 字符編碼統一使用UTF-8 ==================== -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

        <!-- ==================== JDK版本號 ==================== -->
        <java.version>1.8</java.version>

        <!-- ==================== spring 依賴版本號 ==================== -->
        <spring.version>5.2.10.RELEASE</spring.version>

        <!-- ==================== mybatis 相關依賴版本號 ==================== -->
        <mybatis.version>3.5.6</mybatis.version>
        <mybatis-spring.version>2.0.5</mybatis-spring.version>
        <mybatis-generator.version>1.3.2</mybatis-generator.version>
        <pagehelper.version>5.2.0</pagehelper.version>

        <!-- ==================== web相關依賴版本號 ==================== -->
        <servlet.version>4.0.1</servlet.version>
        <jsp.version>2.3.3</jsp.version>
        <jstl.version>1.2</jstl.version>
        <jackson.version>2.11.3</jackson.version>

        <!-- ==================== 工具類相關依賴版本號 ==================== -->
        <commons-lang3.version>3.11</commons-lang3.version>
        <commons-codec.version>1.15</commons-codec.version>
        <guava.version>30.0-jre</guava.version>

        <!-- ==================== 數據校驗依賴版本號 ==================== -->
        <hibernate-validator.version>5.3.0.Final</hibernate-validator.version>

        <!-- ==================== 日誌相關依賴版本號  ==================== -->
        <jcl-over-slf4j.version>1.7.30</jcl-over-slf4j.version>
        <slf4j-api.version>1.7.30</slf4j-api.version>
        <slf4j-log4j12.version>1.7.30</slf4j-log4j12.version>
        <log4j.version>1.2.17</log4j.version>

        <!-- ==================== 數據庫相關依賴版本號 ==================== -->
        <!--jdbc driver-->
        <mysql.version>5.1.49</mysql.version>
        <h2.version>1.4.200</h2.version>
        <hikaricp.version>3.4.5</hikaricp.version>

        <!-- ==================== 緩存相關依賴版本號 ==================== -->
        <jedis.version>2.9.0</jedis.version>
        <spring-data-redis.version>1.7.5.RELEASE</spring-data-redis.version>

        <!-- ==================== 單元測試依賴版本號 ==================== -->
        <junit.version>4.12</junit.version>

    </properties>

    <dependencies>

        <!-- ==================== spring 相關依賴 ==================== -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <exclusions>
                <!--排除 spring-jcl-->
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-jcl</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
        </dependency>

        <!-- ==================== mybatis 相關依賴 ==================== -->
        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <!-- mybatis-spring -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${mybatis-spring.version}</version>
        </dependency>
        <!--mybatis-generator-->
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>${mybatis-generator.version}</version>
        </dependency>
        <!-- pagehelper -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>${pagehelper.version}</version>
        </dependency>

        <!-- ==================== Web相關依賴 ==================== -->
        <!-- servlet -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>${servlet.version}</version>
            <scope>provided</scope>
        </dependency>

        <!-- jsp -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>${jsp.version}</version>
            <scope>provided</scope>
        </dependency>

        <!-- jstl -->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>${jstl.version}</version>
        </dependency>
        <!-- jstl-api -->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl-api</artifactId>
            <version>${jstl.version}</version>
        </dependency>

        <!-- json -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-jaxb-annotations</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <!--將jquery以jar包的形式引入-->
        <!--<script src="${ctx}/webjars/jquery/3.3.1-2/jquery.min.js"></script>
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>jquery</artifactId>
            <version>3.5.1</version>
        </dependency>-->

        <!-- ==================== 工具類相關依賴 ==================== -->
        <!-- apache commons -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>${commons-lang3.version}</version>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>${commons-codec.version}</version>
        </dependency>
        <!--guava-->
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>${guava.version}</version>
        </dependency>

        <!-- ==================== 數據校驗相關依賴 ==================== -->
        <!--hibernate-validator-->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>${hibernate-validator.version}</version>
        </dependency>

        <!-- ==================== 日誌相關依賴 ==================== -->
        <!--jcl-over-slf4j-->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>${jcl-over-slf4j.version}</version>
        </dependency>
        <!-- slf4j-api -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j-api.version}</version>
        </dependency>
        <!-- slf4j-log4j12 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j-log4j12.version}</version>
        </dependency>
        <!-- log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>

        <!-- ==================== 數據庫相關依賴 ==================== -->
        <!-- hikaricp -->
        <dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP</artifactId>
            <version>${hikaricp.version}</version>
        </dependency>

        <!--jdbc driver-->
        <!--mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
            <scope>runtime</scope>
        </dependency>

        <!--h2-->
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <version>${h2.version}</version>
            <scope>runtime</scope>
        </dependency>

        <!-- ==================== 緩存相關依賴 ==================== -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>${jedis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
            <version>${spring-data-redis.version}</version>
        </dependency>

        <!-- ==================== 單元測試相關依賴 ==================== -->
        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>
        <!-- spring-test-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <!-- 統一 spring 的版本號 -->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-framework-bom</artifactId>
                <version>${spring.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>

        <finalName>webstart-simple</finalName>

        <plugins>

            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
                <configuration>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>${mysql.version}</version>
                    </dependency>
                </dependencies>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <warName>${project.artifactId}</warName>
                    <webResources>
                        <resource>
                            <filtering>true</filtering>
                            <directory>src/main/webapp</directory>
                            <includes>
                                <include>**/web.xml</include>
                            </includes>
                        </resource>
                    </webResources>
                    <warSourceDirectory>src/main/webapp</warSourceDirectory>
                    <webXml>src/main/webapp/WEB-INF/web.xml</webXml>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>

        </plugins>

    </build>

</project>

說明

hibernate-validator 選用 5.3.0.Final 版本。而沒選擇 6.0 以上的版本。因爲 6.0 以上的版本的org.hibernate.validator.constraints.NotBlank被標記爲過時了。看網上有建議說使用javax.validation.constraints.NotBlank代替。但自己試過後，發現並沒有什麼效果。索性選擇 5.x 相關的版本。
數據庫連接池選擇了hikaricp。據說它是 spring-boot 默認的數據庫連接池。
使用如下代碼，統一 spring 的版本。這樣，就不需要在每個 spring 依賴的後面加入版本號了。

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-framework-bom</artifactId>
            <version>${spring.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

日誌配置

之前看，有建議這麼配置的

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-core</artifactId>
    <version>${spring.version}</version>
    <exclusions>
        <!--排除commons-logging依賴-->
        <exclusion>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
        </exclusion>
    </exclusions>
</dependency>

即排除commons-logging依賴。

但這次用spring5.2.10.RELEASE版本發現spring-core沒有再依賴commons-logging而是依賴了spring-jcl。通過查看源代碼發現，其與commons-logging代碼幾乎是一樣的。由於，jcl-over-slf4j 也提供了同樣的代碼，結果導致spring-jcl成了多餘的依賴。

綜上，spring 日誌的相關配置調整爲

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
    <exclusions>
        <!--排除 spring-jcl-->
        <exclusion>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jcl</artifactId>
        </exclusion>
    </exclusions>
</dependency>

<!-- ==================== 日誌相關依賴 ==================== -->
<!--jcl-over-slf4j-->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>jcl-over-slf4j</artifactId>
    <version>${jcl-over-slf4j.version}</version>
</dependency>
<!-- slf4j-api -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j-api.version}</version>
</dependency>
<!-- slf4j-log4j12 -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>${slf4j-log4j12.version}</version>
</dependency>
<!-- log4j -->
<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>${log4j.version}</version>
</dependency>

添加mybatis-generator-maven-plugin

<plugin>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-maven-plugin</artifactId>
    <version>1.3.2</version>
    <configuration>
        <verbose>true</verbose>
        <overwrite>true</overwrite>
    </configuration>
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>
    </dependencies>
</plugin>

選擇 IntelliJ IDEA 右邊的 Maven 欄，然後按如圖提示點擊，即可生產相關的 mybatis 代碼&文件。

關於緩存的配置

<jedis.version>2.9.0</jedis.version>
<spring-data-redis.version>1.7.5.RELEASE</spring-data-redis.version>
        
<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>${jedis.version}</version>
</dependency>
<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-redis</artifactId>
    <version>${spring-data-redis.version}</version>
</dependency>

建議使用上面的版本，不然可能會有 jar 文件衝突。

2-添加 Maven 依賴

pom.xml

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