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class mysql {
 /*+++++++++++++++Êý¾Ý¿â·ÃÎÊÀà++++++++++++++++++++++++++
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 */
   //=================================================
        //Á¬½ÓÊý¾Ý
 private $Host        = "localhost";  //·þÎñÆ÷µØÖ·
 private $Database    = "sansu";       //Êý¾Ý¿âÃû³Æ
 private $User        = "root";       //Óû§Ãû
 private $Password    = "czq339403229";           //Óû§ÃÜÂë
 private $Char_Set    = "utf8";       //ÉèÖÃÊý¾Ý¿â×Ö·û¼¯
       //½á¹ûÊý¾Ý
 public $Link_ID      = 0;            //Êý¾Ý¿âÁ¬½Ó
 public $Query_ID     = 0;            //²éѯ½á¹û
 public $Row_Result   = array();     //½á¹û½Ú×é³ÉµÄÊý×é
 public $Field_Result = array();     //½á¹û¼¯×Ö¶Î×é³ÉµÄÊý×é
// public $Affected_Rows=null;         //Ó°ÏìµÄÐÐÊý
// public $Rows         = null;        //½á¹û¼¯ÐÐÊý
// public $Fields       = null;        //½á¹û¼¯×Ö¶ÎÊý
// public $Row_Position = null;        //¼Ç¼ָÕëλÖÃË÷Òý
 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// _______________________________________________________________
  /*
     +++++++++++¹¹Ô캯Êý++++++++++++++++
  +++++++++++++++


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MySQL Basic Knowledge

MySQL°æ±¾: Server version: 5.1.44 Source distribution
ÐÞ¸ÄrootÃÜÂë
Èç¹ûûÓÐÃÜÂëʹÓÃÏÂÃæµÄÃüÁî, ½«ÃÜÂëÉèΪ"123456"
$ mysqladmin -u root password 123456
Èç¹ûÓÐÃÜÂëʹÓÃÏÂÃæµÄÃüÁî, ½«ÃÜÂë¸ÄΪ"123456"
$ mysqladmin -u root -p password 123456
Enter password:
Óû§ÕË»§¹ÜÀí
Ìí¼ÓÕË» ......

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public class TestService {
public static TestService test=null;
public static TestService getTestService(){
if(test==null){
test=new TestService();
}
return test;
}
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mysqlÓÅ»¯¼¼ÇÉ

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tomcat °²×°Ä¿Â¼ÏµÄconfĿ¼ÖеÄcontext.xmlÓëweb.xmlÎļþ·Ö±ðÐÞ¸ÄÈçÏ£º
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<Resource name="jdbc/mysql"
auth="Container"
type="javax.sql.DataSource"
driverClassName="com.mysql.jdbc.Driver"
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