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feat: 更新示例代码
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-469
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27 files changed

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‎codes/javadb/javadb-h2/pom.xml‎

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<maven.compiler.source>${java.version}</maven.compiler.source>
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<maven.compiler.target>${java.version}</maven.compiler.target>
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<junit.version>4.12</junit.version>
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<junit.version>4.13.1</junit.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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<version>1.4.197</version>
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<version>2.0.206</version>
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<scope>test</scope>
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</dependency>
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<!-- database end -->

‎codes/javadb/javadb-hbase/pom.xml‎

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<maven.compiler.target>${java.version}</maven.compiler.target>
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<hbase.version>1.3.1</hbase.version>
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<junit.version>4.12</junit.version>
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<junit.version>4.13.1</junit.version>
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<dunwu.version>0.5.7</dunwu.version>
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</properties>
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‎codes/javadb/javadb-mysql/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<version>1.0.0</version>
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<packaging>jar</packaging>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<java.version>1.8</java.version>
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<maven.compiler.source>${java.version}</maven.compiler.source>
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<maven.compiler.target>${java.version}</maven.compiler.target>
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<spring.version>4.3.13.RELEASE</spring.version>
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<logback.version>1.2.3</logback.version>
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<junit.version>4.12</junit.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-jdbc</artifactId>
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</dependency>
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<!-- db begin -->
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<version>8.0.21</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-pool2</artifactId>
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<version>2.5.0</version>
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</dependency>
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<!-- db end -->
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<!-- log start -->
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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</dependency>
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<!-- log end -->
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<!-- spring begin -->
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-context-support</artifactId>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-test</artifactId>
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<scope>test</scope>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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</dependency>
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<!-- spring end -->
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<!-- test begin -->
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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</dependency>
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<!-- test end -->
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</dependencies>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-framework-bom</artifactId>
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<version>${spring.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<!-- database begin -->
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<dependency>
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<groupId>redis.clients</groupId>
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<artifactId>jedis</artifactId>
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<version>${jedis.version}</version>
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</dependency>
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<!-- database end -->
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<!-- log begin -->
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-parent</artifactId>
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<version>${logback.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<!-- log end -->
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<!-- test begin -->
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>${junit.version}</version>
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<scope>test</scope>
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</dependency>
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<!-- test end -->
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</dependencies>
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</dependencyManagement>
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<build>
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<finalName>${project.artifactId}</finalName>
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<resources>
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<resource>
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<filtering>true</filtering>
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<directory>src/main/resources</directory>
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<includes>
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<include>logback.xml</include>
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</includes>
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</resource>
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</resources>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>

‎codes/javadb/javadb-mysql/src/main/java/io/github/dunwu/javadb/SpringBootDataJdbcApplication.java‎

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package io.github.dunwu.javadb;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.boot.CommandLineRunner;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.jdbc.core.JdbcTemplate;
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import java.sql.Connection;
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import javax.sql.DataSource;
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@Slf4j
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@SpringBootApplication
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public class SpringBootDataJdbcApplication implements CommandLineRunner {
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private final JdbcTemplate jdbcTemplate;
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public SpringBootDataJdbcApplication(JdbcTemplate jdbcTemplate) {
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this.jdbcTemplate = jdbcTemplate;
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}
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public static void main(String[] args) {
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SpringApplication.run(SpringBootDataJdbcApplication.class, args);
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}
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@Override
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public void run(String... args) throws Exception {
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DataSource dataSource = jdbcTemplate.getDataSource();
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Connection connection;
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if (dataSource != null) {
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connection = dataSource.getConnection();
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} else {
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log.error("连接数据源失败！");
35+
return;
36+
}
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if (connection != null) {
39+
log.info("数据源 Url: {}", connection.getMetaData().getURL());
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} else {
41+
log.error("连接数据源失败！");
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}
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}
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}

‎codes/javadb/javadb-mysql/src/main/java/io/github/dunwu/javadb/User.java‎

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package io.github.dunwu.javadb;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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import lombok.ToString;
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import java.util.Objects;
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/**
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* 用户实体，对应 user 表
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*
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* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
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* @since 2019-11-18
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*/
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@Data
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@ToString
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@NoArgsConstructor
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@AllArgsConstructor
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public class User {
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private Long id;
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private String name;
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private Integer age;
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private String address;
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private String email;
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public User(String name, Integer age, String address, String email) {
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this.name = name;
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this.age = age;
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this.address = address;
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this.email = email;
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}
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@Override
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public int hashCode() {
41+
return Objects.hash(id, name);
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) {
47+
return true;
48+
}
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50+
if (!(o instanceof User)) {
51+
return false;
52+
}
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User user = (User) o;
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if (id != null && id.equals(user.id)) {
57+
return true;
58+
}
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return name.equals(user.name);
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}
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}

‎codes/javadb/javadb-mysql/src/main/java/io/github/dunwu/javadb/UserDao.java‎

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package io.github.dunwu.javadb;
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import org.springframework.jdbc.core.JdbcTemplate;
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import java.util.List;
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/**
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* user 表 Dao 接口
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*
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* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
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* @since 2019-11-18
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*/
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public interface UserDao {
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// DML
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// -------------------------------------------------------------------
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void insert(User user);
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void batchInsert(List<User> users);
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void deleteByName(String name);
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void deleteAll();
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void update(User user);
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Integer count();
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List<User> list();
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User queryByName(String name);
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JdbcTemplate getJdbcTemplate();
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// DDL
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// -------------------------------------------------------------------
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void truncate();
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void recreateTable();
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}

‎codes/javadb/javadb-mysql/src/main/java/io/github/dunwu/javadb/UserDaoExecutor.java‎

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package io.github.dunwu.javadb;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Component;
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import java.util.List;
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import javax.annotation.PostConstruct;
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/**
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* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
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* @since 2020-10-11
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*/
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@Slf4j
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@Component
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public class UserDaoExecutor {
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private final UserDao userDao;
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public UserDaoExecutor(UserDao userDao) {
20+
this.userDao = userDao;
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}
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@PostConstruct
24+
public void method() {
25+
if (userDao != null) {
26+
log.info("Connect to datasource success.");
27+
} else {
28+
log.error("Connect to datasource failed!");
29+
return;
30+
}
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List<User> list = userDao.list();
33+
list.forEach(item -> log.info(item.toString()));
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}
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}

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