使用Leopard Jdbc

学习如何使用Leopard Jdbc。

本指南将引导您完成使用Leopard Jdbc操作MySQL。

How to complete this guide

你可以从头开始并完成每一个步骤,或者您可以绕过你已经熟悉的基本设置步骤。无论哪种方式,你最终都可以得到可工作的代码。

1、配置maven依赖

在dao模块的pom.xml加入

    <dependencies>
        [...]
        <dependency>
            <groupId>io.leopard</groupId>
            <artifactId>leopard-data</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        [...]
    </dependencies>
    <repositories>
        <repository>
            <id>leopard-snapshots</id>
            <name>Leopard Snapshots</name>
            <url>http://leopard.io/nexus/content/repositories/snapshots/</url>
        </repository>
    </repositories>

2、配置spring

site-dao/src/main/resources/applicationContext-dao.xml

<?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:leopard="http://www.leopard.io/schema/leopard"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
	http://www.leopard.io/schema/leopard http://www.leopard.io/schema/leopard.xsd">

	<leopard:component-scan base-package="io.leopard.site" />

	<leopard:jdbc id="jdbc" host="112.126.75.27" database="example" user="example" password="leopard" />
	<leopard:redis id="redis" server="112.126.75.27:6311" />

</beans>

3、使用Jdbc接口

创建site-dao/src/main/java/io/leopard/site/dao/mysql/UserDaoMyqlImpl.java

package io.leopard.site.dao.mysql;

import io.leopard.data4j.jdbc.Jdbc;
import io.leopard.data4j.jdbc.builder.InsertBuilder;
import io.leopard.site.model.User;

import javax.annotation.Resource;

import org.springframework.stereotype.Repository;

@Repository
public class UserDaoMyqlImpl {

	@Resource
	private Jdbc jdbc;

	public boolean add(User user) {
		InsertBuilder builder = new InsertBuilder("user");
		builder.setLong("uid", user.getUid());
		builder.setString("passport", user.getPassport());
		builder.setString("nickname", user.getNickname());
		builder.setDate("posttime", user.getPosttime());
		return this.jdbc.insertForBoolean(builder);
	}

	public User get(long uid) {
		String sql = "select * from user where uid=?";
		return this.jdbc.query(sql, User.class);
	}

	public boolean delete(long uid) {
		String sql = "delete from user where uid=?";
		return this.jdbc.updateForBoolean(sql, uid);
	}
}

总结

恭喜你！您已经可以在旧项目配置使用Leopard Jdbc，虽然功能比较简单，你可以在这个基础上扩展出你的业务系统，祝您好运。