IDEA软件安装详解,

首先,对,没错,你需要安装包以及破解的jar包

1.点击应用程序进行安装

选择安装路径,然后next,再然后出现的全勾选之后,next,然后点击install安装

安装成功后,

然后我们需要激活,不然的话,你只能用上10天半个月,所以需要破解,

1.将JetbrainsCrack-2.6.0.jar放入安装路径的lib包中

2.在bin目录下idea.exe.vmoptions和idea64.exe.vmoptions两个文件后分别换行追加:
-javaagent:D:/JetbrainsCrack-2.6.0.jar.. (注:此路径为你该jar包的绝对路径),

3.运行idea程序(32位系统运行idea.exe,64位系统运行idea64.exe)
在注册页面选中中间的选项,在文本框中输入:
ThisCrackLicenseId-{
"licenseId":"ThisCrackLicenseId",
"licenseeName":"Rover12421",
"assigneeName":"",
"assigneeEmail":"rover12421@163.com",
"licenseRestriction":"For Rover12421 Crack, Only Test! Please support genuine!!!",
"checkConcurrentUse":false,
"products":[
{"code":"II","paidUpTo":"2099-12-31"},
{"code":"DM","paidUpTo":"2099-12-31"},
{"code":"AC","paidUpTo":"2099-12-31"},
{"code":"RS0","paidUpTo":"2099-12-31"},
{"code":"WS","paidUpTo":"2099-12-31"},
{"code":"DPN","paidUpTo":"2099-12-31"},
{"code":"RC","paidUpTo":"2099-12-31"},
{"code":"PS","paidUpTo":"2099-12-31"},
{"code":"DC","paidUpTo":"2099-12-31"},
{"code":"RM","paidUpTo":"2099-12-31"},
{"code":"CL","paidUpTo":"2099-12-31"},
{"code":"PC","paidUpTo":"2099-12-31"}
],
"hash":"2911276/0",
"gracePeriodDays":7,
"autoProlongated":false}

4.附加:如果使用中文包就将中文包目录下的resources_cn.jar放入lib目录下
如果不想再使用中文包,就再将lib目录下resources_cn.jar删除

接下来是IDEA的基本操作,

创建java项目点击Create project from template,点击java Hello World 创建项目,选择项目路径完成创建

编写之前我们需要9个jar包文件

asm-3.3.1.jar 操作java字节码的类库

cglib-2.2.2.jar 用来动态集成Java类或实现接口

commons-logging-1.1.1.jar 用于通用日志处理

javassist-3.17.1-GA.jar 分析·编辑和创建java字节码的类库

log4j-1.2.17.jar 日志系统

slf4j-api-1.7.5.jar 日志系统的封装,对外提供统一的api接口

slf4j-log4j12-1.7.5.jar slf4对log4j的相应驱动,完成slf4j绑定log4j

以及连接数据库的jar包

点击new创建文件夹lib把这些jar包放入,点击项目右键open module setting 的最后一个,点击+号,找到jar包然后ok

创建config.xml文件

<?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">
<configuration>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql:/// y2167"/>
                <property name="username" value="root"/>
                <property name="password" value=""/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <mapper resource="cn/dao/IBookDao.xml"/>
    </mappers>
</configuration>



然后创建与数据库对应的实体类

public class Book {
    private Integer bookID;

    private String bookName;

    private String bookAuthor;

    private int bookPrice;

    public Integer getBookID() {
        return bookID;
    }

    public void setBookID(Integer bookID) {
        this.bookID = bookID;
    }

    public String getBookName() {
        return bookName;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public String getBookAuthor() {
        return bookAuthor;
    }

    public void setBookAuthor(String bookAuthor) {
        this.bookAuthor = bookAuthor;
    }

    public int getBookPrice() {
        return bookPrice;
    }

    public void setBookPrice(int bookPrice) {
        this.bookPrice = bookPrice;
    }
}

然后创建dao层

package cn.dao;

import cn.entity.Book;

import java.util.List;

/**
 * Created by Administrator on 2018/1/27.
 */
public interface IBookDao {
    public List<Book> findAllBook();
}

然后是配置与dao相同名的xml文件

<?xml version="1.0" encoding="UTF-8" ?>
        <!DOCTYPE mapper
                PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="cn.dao.IBookDao">
<select id="findAllBook" resultType="cn.entity.Book">
    select * from book
</select>
</mapper>

其中的namespace指dao的路径,建议使用快捷键右键该dao文件copy reference,然后粘贴

id是方法名,resultType是实体类的路径,同上方法,

然后是test类,实现类

package cn.test;
import cn.entity.Book;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

/**
 * Created by Administrator on 2018/1/27.
 */
public class Test {
    public static void main(String[] args) {

        String path = "mybatis-config.xml";

        try {

            InputStream is = Resources.getResourceAsStream(path);

            SqlSessionFactoryBuilder build = new SqlSessionFactoryBuilder();

            SqlSessionFactory factory = build.build(is);

            SqlSession session = factory.openSession();

            List<Book> list = session.selectList("findAllBook");

            for (Book book : list) {
                System.out.println(book.getBookName());
            }

            session.close();
        }catch(IOException e){
          e.printStackTrace();
        }
        }

}