How JSP pages traverse a table in a database

I am a beginner, the following is the rookie in the actual use of the record, the great God can skip, of course, also welcome guidance twos

• Starting with the JSP page, here is the

<s:iterator var= "word" value= "#wordList >//where wordList is associated with the action Context.put (" WordList ", wordList), the list collection in the , list is a database thing, Word is just a variable name    <s:property value= "#word. Details"/>//takes out the details property in the wordlist element with <s:property,  that is, the details field in the database                      </s:iterator>

• Now come to action

Private String time;
Private stringdetails;


Public String GetTime () {
return time;
}

public void SetTime (String time) {
This.time = time;
}

Public String getdetails () {
return details;
}

public void Setdetails (String details) {
This.details = details;
}

Public String showwordlist () throws exception{
Actioncontext Context=actioncontext.getcontext ();

List<word> wordlist=worddao.getwordlist ();//list collection receives database content from the DAO layer
Context.put ("WordList", wordList);

return "word";
}

• Then there's the DAO layer.

 Public StaticList<word>Getwordlist () {Session session=hibernatesessionfactory.getsession (); Try{Criteria=session.createcriteria (Word.class); List<Word> word=criteria.list ();//get the table in the database into the list set session.close (); returnword;//returns the list collection}Catch(Exception e) {E.printstacktrace (); }        return NULL; }

• Then there's the model layer.

 Public classWordImplementsjava.io.serializable{Private Static Final LongSerialversionuid = 1L; PrivateInteger ID; PrivateString time; PrivateString details;  PublicWord () {}//Overloaded Construction Methods     PublicWord (string time, string details) { This. Time =Time ;  This. Details =details; }... The Set,get method for each member is omitted below}

Now it's hbm.xml. Configuration of files related to Hibernate.cfg.xml

//here are the Hbm.xmlclassName= "Com.model.Word" table= "Word" catalog= "se" > <!--Mapping ID field--<id name= "id" type= "java.lang.i Nteger "> <column name=" id "/> <generatorclass= "Identity"/> </id> <!--map Name field--<property name= "Time" type= "java.lang.String "> <column name=" Time "length=" not-NULL= "true"/> </property> <!--map pwd field--<property name= "Details" type= "java.lang.St Ring "> <column name=" Details "length=" not-NULL= "true"/> </property> </class>//here are the Cfg.xmlOrg.hibernate.dialect.MySQLDialect</property> <!--link address--<property name= "Connection.url" >Jdbc:mysql://Localhost:3306/se?useunicode=true&amp;characterencoding=utf-8</property> <!--database user--<property name= "Connection.username" >root</property> <!-- Database user Password--<property name= "Connection.password" >root</property> <!--Connection Driver--&LT;PR Operty name= "Connection.driver_class" >Com.mysql.jdbc.Driver</property> <property name= "Myeclipse.connection.profile" >Com.mysql.jdbc.Driver</property> <property name= "Show_sql" >true</property> <property name= "Format_sql" >true</property> <!--map Files--<mapping resource= "Com/model/word.hbm.xml"/></session-factory>&lt ;/hibernate-configuration>

• Next is the Struts.xml configuration.

class= "Com.action.WordAction" >            <result name= "word" >/user/word.jsp</result></ Action>

How JSP pages traverse a table in a database