Mybatis3 additions and deletions to search

Source: Internet
Author: User
Tags commit connection pooling log4j

Configuration.xml, mybatis master configuration file

<?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" > & lt;! --Note: Each label must be written sequentially and will prompt for error:--> <configuration> <!--property Configuration--<properties resource= "Jdbc.properties"/ > <!--set cache and lazy load, and so on. Important runtime behavior--<settings> <!--set the time-out time, which determines how long the driver waits for a database response--<setting N Ame= "Defaultstatementtimeout" value= "25000"/> </settings> <!--aliases--<typeAliases> <typeal
		IAS alias= "User" type= "Com.mybatis.model.User"/> </typeAliases> <environments default= "Development" > <!--environment element Body contains environment configuration for transaction management and connection pooling--<environment id= "Development" > <transactionmanager type= "JD BC "/> <datasource type=" Pooled "> <property name=" Driver "value=" ${driver} "/> <property name = "url" value= "${url}"/> <property name= "username" value= "${username}"/> <propertY name= "password" value= "${password}"/> </dataSource> </environment> </environments> <!- -ORM Mapping File--<mappers> <mapper resource= "Com/mybatis/model/usersqlmap.xml"/> </mappers> </co  Nfiguration>
Jdbc.properties
Driver=com.mysql.jdbc.driver
url=jdbc:mysql://localhost:3306/test?useunicode=true&characterencoding= UTF-8
username=root
password=123456
Log4j.properties
Log4j.rootlogger=debug, stdout, R

log4j.appender.stdout=org.apache.log4j.consoleappender
Log4j.appender.stdout.layout=org.apache.log4j.patternlayout

Log4j.appender.stdout.layout.ConversionPattern =%5p-%m%n

log4j.appender.r=org.apache.log4j.rollingfileappender
log4j.appender.r.file=firestorm.log

log4j.appender.r.maxfilesize=100kb
log4j.appender.r.maxbackupindex=1

log4j.appender.r.layout= Org.apache.log4j.PatternLayout
log4j.appender.r.layout.conversionpattern=%p%t%c-%m%n

Log4j.logger.com.codefutures=debug
User. java

Package Com.mybatis.model;

Import java.io.Serializable;

@SuppressWarnings ("Serial") Public
class User implements Serializable {
	
	private int id;
	Private String userName;
	private String password;
	
	Public User () {
	} public
	
	int getId () {
		return ID;
	}
	public void setId (int id) {
		this.id = ID;
	}
	Public String GetUserName () {
		return userName;
	}
	public void Setusername (String userName) {
		this.username = userName;
	}
	Public String GetPassword () {
		return password;
	}
	public void SetPassword (String password) {
		this.password = password;
	}

}
Usersqlmap.xml

<?xml version= "1.0" encoding= "UTF-8"?> <! DOCTYPE Mapper Public "-//ibatis.apache.org//dtd mapper 3.0//en" "HTTP://IBATIS.APACHE.ORG/DTD/IBATIS-3-MAPPER.D TD "> <!--namespace Mapper file that recognizes the specified XML when Java code is called--<mapper namespace=" Com.mybatis.model.User "> &L t;! --Configure ORM Mapping--<resultmap type= "User" id= "User_orm" > <id property= "id" column= "id"/> <result proper Ty= "UserName" column= "UserName"/> <result property= "password" column= "password"/> </resultMap> <!- -Used to define reusable SQL code Snippets--<sql id= "Demo_sql" > Username,password </sql> <insert id= "Inser_user" pa Rametertype= "User" > <!--include references to reusable SQL code Snippets--INSERT into User (<include refid= "Demo_sql"/>) VALUES ( #{username},#{password}) </insert> <update id= "Update_user" parametertype= "user" > Update user SET Userna Me=#{username}, Password=#{password} where Id=#{id} </update> <update id= "deletE_user "parametertype=" int "> DELETE from User WHERE Id=#{id} </update> <select id=" Selectall_user "u Secache= "false" flushcache= "true" resultmap= "User_orm" > select * from User </select> <!--using map Descendants of multiple parameters--<select id= "Selectlist_user" usecache= "false" flushcache= "true" parametertype= "map" resultmap= "User_ ORM "> select * from USER LIMIT #{pagenow},#{pagesize} </select> <select id=" Selectbyid_user "p arametertype= "int" resulttype= "user" > select * from User WHERE id= #{id} </select> <select id= " Selectcount_user "resulttype=" int "> SELECT COUNT (*) from user </select> <select id=" Selectbyn Ame_user "parametertype=" String "resulttype=" User "> select * from User WHERE username= #{username} </select&

    Gt
	     <!--Blur Myibatis 3.2.0--> <select id= "Selectuserbyname" parametertype= "String" resultmap= "User_orm" > SELECT * from USER WHERE userName like "%" #{username} "%" </select> </mapper> 
Sessionfactoryutil.java MyBatis Tool class for creating sqlsessionfactory

Package com.mybatis.sessionfactory;
Import java.io.IOException;

Import Java.io.Reader;
Import org.apache.ibatis.io.Resources;
Import org.apache.ibatis.session.SqlSession;
Import Org.apache.ibatis.session.SqlSessionFactory;

Import Org.apache.ibatis.session.SqlSessionFactoryBuilder;
	public class Sessionfactoryutil {private static final String RESOURCE = "Configuration.xml";
	private static sqlsessionfactory sqlsessionfactory = null;

	private static threadlocal<sqlsession> ThreadLocal = new threadlocal<sqlsession> ();
		static {reader reader = null;
		try {reader = Resources.getresourceasreader (RESOURCE);
		} catch (IOException e) {throw new RuntimeException ("Get Resource error:" +resource, E);
	} sqlsessionfactory = new Sqlsessionfactorybuilder (). build (reader); }/** * Function: Get sqlsessionfactory */public static sqlsessionfactory Getsqlsessionfactory () {Retu   
    RN Sqlsessionfactory; }/** * Function: Re-create Sqlsessionfactory
	 */public static void Rebuildsqlsessionfactory () {reader reader = null;
		try {reader = Resources.getresourceasreader (RESOURCE);
		} catch (IOException e) {throw new RuntimeException ("Get Resource error:" +resource, E);
	} sqlsessionfactory = new Sqlsessionfactorybuilder (). build (reader); }/** * Function: Gets sqlsession */public static sqlsession getsession () {sqlsession session = Threadlocal.get (
		
		);
			if (session!=null) {if (sqlsessionfactory = = null) {getsqlsessionfactory (); }//If Sqlsessionfactory is not empty then get sqlsession, otherwise null session = (SQLSESSIONFACTORY!=NULL) is returned?
		Sqlsessionfactory.opensession (): null;
	} return session;
		}/** * Function: Close sqlsession */public static void CloseSession () {sqlsession session = Threadlocal.get ();
		Threadlocal.set (NULL);
		if (session!=null) {session.close (); }
	}
}

Userdao interface

Package Com.mybatis.dao;

Import java.util.List;

Import Com.mybatis.model.User;

Public interface Userdao {public
	
	User load (int id);
	public void Add (user user);
	public void update (user user);
	public void Delete (int id);
	Public User findbyname (String userName);
	Public list<user>  Queryalluser ();
	Public list<user> List (int pagenow,int pageSize);
	public int getallcount ();
	
}
Userdaoimpl

Package com.mybatis.dao.implment;
Import Java.util.HashMap;
Import java.util.List;

Import Java.util.Map;

Import org.apache.ibatis.session.SqlSession;
Import Com.mybatis.dao.UserDao;
Import Com.mybatis.model.User;


Import Com.mybatis.sessionfactory.SessionFactoryUtil; public class Userdaoimpl implements Userdao {public User load (int id) {sqlsession session = SESSIONFACTORYUTIL.GETSQ
		Lsessionfactory (). Opensession ();
		User user = (user) Session.selectone ("Com.mybatis.model.User.selectById_user", id);
		Session.close ();
	return user;
		public void Add (user user) {sqlsession session = Sessionfactoryutil.getsqlsessionfactory (). Opensession ();
		Session.insert ("Com.mybatis.model.User.inser_user", User);
		Session.commit ();
	Session.close ();
		public void update (user user) {sqlsession session = Sessionfactoryutil.getsqlsessionfactory (). Opensession ();
		Session.update ("Com.mybatis.model.User.update_user", User);
		Session.commit ();
	Session.close (); } public void DelETE (int id) {sqlsession session = Sessionfactoryutil.getsqlsessionfactory (). Opensession ();
		Session.delete ("Com.mybatis.model.User.delete_user", id);
	Session.close (); Public User findbyname (String userName) {sqlsession session = Sessionfactoryutil.getsqlsessionfactory (). opensession
		();
		User user = (user) Session.selectone ("Com.mybatis.model.User.selectByName_user", userName);
		Session.close ();
	return user; } @SuppressWarnings ("Unchecked") public list<user> Queryalluser () {sqlsession session = Sessionfactoryutil.ge
		Tsqlsessionfactory (). Opensession ();
		list<user> list = session.selectlist ("Com.mybatis.model.User.selectAll_user");
		Session.close ();
	return list; } @SuppressWarnings ("Unchecked") public list<user> List (int pagenow, int pageSize) {sqlsession session = Sess
		Ionfactoryutil.getsqlsessionfactory (). Opensession ();
		map<string,object> params = new hashmap<string,object> ();
		Params.put ("Pagenow", Pagenow); Params.puT ("PageSize", pageSize);
		list<user> list = session.selectlist ("Com.mybatis.model.User.selectList_user", params);
		Session.close ();
	return list;
		} public int Getallcount () {sqlsession session =sessionfactoryutil.getsqlsessionfactory (). Opensession ();
		int count = (Integer) session.selectone ("Com.mybatis.model.User.selectCount_user");
		Session.close ();
	return count; }
	
}

Test class:

Package com.mybatis.dao.implment;

Import java.util.List;

Import Org.junit.Test;
Import Com.mybatis.dao.UserDao;

Import Com.mybatis.model.User;
	
	public class Userdaotest {private Userdao Userdao = new Userdaoimpl ();
		@Test public void TestLoad () {User u = userdao.load (1);
		if (u!=null) {System.out.println ("UserId:" +u.getid () + "UserName:" +u.getusername () + "Password:" +u.getpassword ()); } else{System.out.println ("ID does not exist:
		");
		}} @Test public void Testadd () {User user = new User ();
		User.setusername ("Admin5");
		User.setpassword ("123456");
	Userdao.add (user);
		} @Test public void Testupdate () {User user = new User ();
		User.setid (2);
		User.setusername ("manager");
		User.setpassword ("123456");
	Userdao.update (user);
		} @Test public void Testqueryalluser () {list<user> List = Userdao.queryalluser (); if (List!=null&list.size () >0) {for (User u:list) {System.out.println ("UserId:" +u.getid () + "UserName:" +u.getus Ername () + "PasswoRD: "+u.getpassword ());
		}}} @Test public void Testfindbyname () {User u = userdao.findbyname ("admin");
		if (u!=null) {System.out.println ("UserId:" +u.getid () + "UserName:" +u.getusername () + "Password:" +u.getpassword ()); } else{System.out.println ("User name does not exist:
		");
		}} @Test public void Testlist () {list<user> List = userdao.list (1, 4); if (List!=null&list.size () >0) {for (User u:list) {System.out.println ("UserId:" +u.getid () + "UserName:" +u.getus
			Ername () + "Password:" +u.getpassword ());
	}}} @Test public void Testgetallcount () {System.out.println ("All Count:" +userdao.getallcount ());
	} @Test public void Testdelete () {userdao.delete (3); }

}







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