追忆Tapstry4.0------学习笔记（四）

接上例：http://blog.csdn.net/kunshan_shenbin/archive/2008/11/18/3325343.aspx

T3版本的参考对照：http://blog.csdn.net/kunshan_shenbin/archive/2008/11/14/3300185.aspx

如下图所示建立工程：

所需Jar包与上例一致。

代码如下：

GlobalPhoneBook.java

1. package com.ttdev.phonebook;
3. public class GlobalPhoneBook extends PhoneBook {
4.     
5.     public GlobalPhoneBook() {
6.         super(makePhoneBookTable());
7.     }
8.     
9.     private static PhoneBookTable makePhoneBookTable() {
10.         PhoneBookTable phoneBookTable = new PhoneBookTable();
11.         phoneBookTable.insert(new PhoneBookEntry(0, new Name("Alan", "Turing"), "111111"));
12.         phoneBookTable.insert(new PhoneBookEntry(1, new Name("Bill", "Gates"), "111222"));
13.         phoneBookTable.insert(new PhoneBookEntry(2, new Name("Martin", "Fowler"), "654321"));
14.         phoneBookTable.insert(new PhoneBookEntry(3, new Name("Kent", "Beck"), "999001"));
15.         phoneBookTable.insert(new PhoneBookEntry(4, new Name("Howard", "Ship"), "554433"));
16.         phoneBookTable.insert(new PhoneBookEntry(5, new Name("Linus", "Torvalds"), "888777"));
17.         phoneBookTable.insert(new PhoneBookEntry(6, new Name("Ward", "Cunningham"), "222222"));
18.         phoneBookTable.insert(new PhoneBookEntry(7, new Name("James", "Gosling"), "333333"));
19.         phoneBookTable.insert(new PhoneBookEntry(8, new Name("Erich", "Gamma"), "4444444"));
20.         phoneBookTable.insert(new PhoneBookEntry(9, new Name("Grady", "Booch"), "5555555"));
21.         phoneBookTable.insert(new PhoneBookEntry(10, new Name("Bruce", "Eckel"), "6666666"));
22.         phoneBookTable.insert(new PhoneBookEntry(11, new Name("Richard", "Stallman"), "777777"));
23.         return phoneBookTable;
24.     }
25. }

Home.java

1. package com.ttdev.phonebook;
3. import java.util.*;
5. import org.apache.tapestry.annotations.*;
6. import org.apache.tapestry.contrib.table.components.*;
7. import org.apache.tapestry.contrib.table.model.*;
8. import org.apache.tapestry.contrib.table.model.simple.*;
9. import org.apache.tapestry.html.*;
11. public abstract class Home extends BasePage {
12.     
13.     @InjectState("phoneBook")
14.     public abstract PhoneBook getPhoneBook();
15.     
16.     public List<?> getSource() {
17.         return getPhoneBook().getEntries();
18.     }
19.     public IBasicTableModel getModel() {
20.         return new IBasicTableModel() {
21.             public int getRowCount() {
22.                 return getPhoneBook().getNoEntries();
23.             }
24.             public Iterator<?> getCurrentPageRows(
25.                     int nFirst,
26.                     int nPageSize,
27.                     ITableColumn objSortColumn,
28.                     boolean bSortOrder) {
29.                 String sortColumnId = objSortColumn == null
30.                         ? null
31.                         : objSortColumn.getColumnName();
32.                 return getPhoneBook().getSomeEntries(
33.                         nFirst,
34.                         nPageSize,
35.                         sortColumnId,
36.                         bSortOrder == ITableSortingState.SORT_ASCENDING).iterator();
37.             }
38.         };
39.     }
40.     public void onShowDetails(int entryId) {
41.         System.out.println("Showing details for " + entryId);
42.     }
43.     @InjectComponent("table")
44.     public abstract TableView getTable();
46.     @InjectComponent("rows")
47.     public abstract TableRows getTableRows();
49.     public void onDelete() {
50.         int id = ((PhoneBookEntry) getTableRows().getTableRow()).getId();
51.         System.out.println("Deleting " + id);
52.         getPhoneBook().deleteEntry(id);
53.         SimpleTableModel tableModel = ((SimpleTableModel) getTable().getTableModel());
54.         tableModel.setDataModel(new SimpleListTableDataModel(getSource()));
55.         tableModel.tableDataChanged(null);
56.         getTable().fireObservedStateChange();
57.     }
58. }

Name.java

1. package com.ttdev.phonebook;
3. import java.io.*;
5. public class Name implements Serializable {
6.     
7.     private static final long serialVersionUID = -6056490677438712843L;
8.     private String firstName;
9.     private String lastName;
11.     public Name(String firstName, String lastName) {
12.         this.firstName = firstName;
13.         this.lastName = lastName;
14.     }
15.     public String getFirstName() {
16.         return firstName;
17.     }
18.     public String getLastName() {
19.         return lastName;
20.     }
21. }

PhoneBook.java

1. package com.ttdev.phonebook;
3. import java.util.*;
5. public class PhoneBook {
6.     
7.     private PhoneBookTable table;
9.     public PhoneBook(PhoneBookTable table) {
10.         this.table = table;
11.     }
12.     public List<PhoneBookEntry> getEntries() {
13.         List<PhoneBookEntry> result = new ArrayList<PhoneBookEntry>();
14.         ResultSet rs = table.selectAll();
15.         while (rs.next()) {
16.             result.add(rs.readEntry());
17.         }
18.         return result;
19.     }
20.     public int getNoEntries() {
21.         return table.selectCount();
22.     }
23.     public List<PhoneBookEntry> getSomeEntries(
24.             int startIdx,
25.             int noEntries,
26.             String sortColumnId,
27.             boolean isAscending) {
28.         ResultSet rs = table.selectLimit(startIdx,  noEntries, sortColumnId, isAscending);
29.         List<PhoneBookEntry> result = new ArrayList<PhoneBookEntry>();
30.         while (rs.next()) {
31.             result.add(rs.readEntry());
32.         }
33.         return result;
34.     }
35.     public void deleteEntry(int id) {
36.         table.delete(id);       
37.     }
38. }

PhoneBookEntry.java

1. package com.ttdev.phonebook;
3. import java.io.*;
5. public class PhoneBookEntry implements Serializable {
6.     
7.     private static final long serialVersionUID = 639860023393294698L;
8.     private int id;
9.     private Name name;
10.     private String telNo;
12.     public PhoneBookEntry(int id, Name name, String telNo) {
13.         this.id = id;
14.         this.name = name;
15.         this.telNo = telNo;
16.     }
17.     public Name getName() {
18.         return name;
19.     }
20.     public int getId() {
21.         return id;
22.     }
23.     public String getTelNo() {
24.         return telNo;
25.     }
26.     public String getFirstName() {
27.         return getName().getFirstName();
28.     }
29. }

PhoneBookEntryComparator.java

1. package com.ttdev.phonebook;
3. import java.util.*;
5. public class PhoneBookEntryComparator implements Comparator<Object> {
6.     
7.     private String columnName;
9.     public PhoneBookEntryComparator(String columnName) {
10.         this.columnName = columnName;
11.     }
12.     public int compare(Object obj1, Object obj2) {
13.         PhoneBookEntry entry1 = (PhoneBookEntry) obj1;
14.         PhoneBookEntry entry2 = (PhoneBookEntry) obj2;
15.         if (columnName.equals("id")) {
16.             return entry1.getId()-entry2.getId();
17.         } else  if (columnName.equals("firstName")) {
18.             return entry1.getFirstName().compareTo(entry2.getFirstName());
19.         } else {
20.             //Similar for other columns.
21.             return 0;
22.         }
23.     }
24. }

PhoneBookTable.java

1. package com.ttdev.phonebook;
3. import java.util.*;
5. public class PhoneBookTable {
6.     
7.     private List<PhoneBookEntry> entries;
9.     public PhoneBookTable() {
10.         entries = new ArrayList<PhoneBookEntry>();
11.     }
12.     public void insert(PhoneBookEntry entry) {
13.         entries.add(entry);
14.     }
15.     public ResultSet selectAll() {
16.         System.out.println("Selecting all");
17.         return new ResultSet(entries);
18.     }
19.     public int selectCount() {
20.         return entries.size();
21.     }
22.     public ResultSet selectLimit(
23.             int startIdx,
24.             int noRecords,
25.             String columnName,
26.             boolean isAscending) {
27.         System.out.println("Selecting with limit");
28.         List<PhoneBookEntry> sortedEntries = new ArrayList<PhoneBookEntry>(entries);
29.         if (columnName != null) {
30.             Collections.sort(sortedEntries, new PhoneBookEntryComparator(columnName));
31.             if (!isAscending) {
32.                 Collections.reverse(sortedEntries);
33.             }
34.         }
35.         List<PhoneBookEntry> subList = sortedEntries.subList(startIdx, startIdx + noRecords);
36.         return new ResultSet(subList);
37.     }
38.     public void delete(int id) {
39.         for (Iterator<PhoneBookEntry> iter = entries.iterator(); iter.hasNext();) {
40.             PhoneBookEntry entry = (PhoneBookEntry) iter.next();
41.             if (entry.getId()==id) {
42.                 iter.remove();
43.                 return;
44.             }           
45.         }
46.     }
47. }

ResultSet.java

1. package com.ttdev.phonebook;
3. import java.util.*;
5. public class ResultSet {
6.     
7.     private List<?> entriesInResultSet;
8.     private int currentIdx;
10.     public ResultSet(List<?> entriesInResultSet) {
11.         this.entriesInResultSet = entriesInResultSet;
12.         this.currentIdx = -1;
13.     }
14.     public boolean next() {
15.         if (currentIdx < entriesInResultSet.size() - 1) {
16.             currentIdx++;
17.             return true;
18.         } else {
19.             return false;
20.         }
21.     }
22.     public PhoneBookEntry readEntry() {
23.         PhoneBookEntry entry = (PhoneBookEntry) entriesInResultSet.get(currentIdx);
24.         System.out.println("Reading entry with id " + entry.getId());
25.         return entry;
26.     }
27. }

hivemodule.xml

1. <?xml version="1.0"?>
2. <module id="com.ttdev.phonebook" version="1.0.0">
3.     <contribution configuration-id="tapestry.state.ApplicationObjects">
4.         <state-object name="phoneBook" scope="application">
5.             <create-instance class="com.ttdev.phonebook.GlobalPhoneBook"/>
6.         </state-object>
7.     </contribution>
8. </module>

PhoneBook.css

1. tr.odd {background-color: RoyalBlue}
2. tr.even {background-color: GreenYellow}
3. th.title {background-color: Pink}

Home.html

1. <html jwcid="@Shell" title="Phone Book" stylesheet="asset:phoneBook">
2. <head jwcid="$remove$">
3. <title>Phone Book</title>
4. <link rel="stylesheet" text="text/css" href="../css/PhoneBook.css"/>
5. </head>
6. <body>
7. <span jwcid="table">
8.     <table border="1">
9.         <tr><span jwcid="@Contrib:TableColumns" class="title"/></tr>
10.         <tr jwcid="rows@Contrib:TableRows" class="ognl:beans.evenOdd.next">
11.             <td jwcid="@Contrib:TableValues"/>
12.         </tr>
13.     </table>
14.     <span jwcid="@Contrib:TablePages"/>
15. </span>
16. <table border="1" jwcid="$remove$">
17.     <tr><th>ID</th><th>First name</th><th>Last name</th><th>Tel #</th><th>Delete</th></tr>
18.     <tr class="odd">
19.         <td>1</td>
20.         <td>Britney</td>
21.         <td>Spears</td>
22.         <td>376926</td>
23.         <td>
24.             <form>
25.                 <input type="submit" value="Delete"/>
26.             </form>
27.         </td>
28.     </tr>
29.     <tr class="even"><td>2</td><td>Elton</td><td>John</td><td>285984</td><td>Delete</td></tr>
30.     <tr class="odd"><td>3</td><td>David</td><td>Letterman</td><td>877357</td><td>Delete</td></tr>
31. </table>
32. <span jwcid="deleteColumnValue">
33.         <form jwcid="deleteForm">
34.             <input type="submit" value="Delete"/>
35.         </form>
36. </span>
37. <span jwcid="firstNameColumnValue">
38.     <a href="" jwcid="firstNameLink"><span jwcid="firstName">Britney</span></a>
39. </span>
40. </body>
41. </html>

Home.page

1. <?xml version="1.0"?>
2. <!DOCTYPE page-specification PUBLIC
3.   "-//Apache Software Foundation//Tapestry Specification 4.0//EN"
4.   "http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd">
5. <page-specification class="com.ttdev.phonebook.Home">
6.     <asset name="phoneBook" path="context:/css/PhoneBook.css"/>
7.     <bean name="evenOdd" class="org.apache.tapestry.bean.EvenOdd">
8.         <set name="even" value="false"/>
9.     </bean>
10.     <component id="table" type="Contrib:TableView">
11.         <binding name="source" value="source"/>
12.         <binding name="columns"
13.             value="literal:id, firstName:First name:name.firstName, lastName:name.lastName, telNo, !delete"/>
14.         <binding name="pageSize" value="3"/>
15.         <binding name="tableSessionStateManager" 
16.             value="new org.apache.tapestry.contrib.table.model.common.FullTableSessionStateManager()"/>
17.     </component>
18.     <component id="deleteColumnValue" type="Block"/>
19.     <component id="deleteForm" type="Form">
20.         <binding name="listener" value="listener:onDelete"/>
21.         <binding name="direct" value="false"/>
22.     </component>
23.     <component id="firstNameColumnValue" type="Block"/>
24.     <component id="firstNameLink" type="DirectLink">
25.         <binding name="listener" value="listener:onShowDetails"/>
26.         <binding name="parameters" value="components.rows.tableRow.id"/>
27.     </component>
28.     <component id="firstName" type="Insert">
29.         <binding name="value" value="components.rows.tableRow.firstName"/>
30.     </component>
31. </page-specification>

PhoneBook.application

1. <?xml version="1.0"?>
2. <!DOCTYPE application PUBLIC
3.   "-//Apache Software Foundation//Tapestry Specification 4.0//EN"
4.   "http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd">
5. <application name="PhoneBook">
6.     <library id="Contrib" specification-path="/org/apache/tapestry/contrib/Contrib.library"/>
7. </application>

web.xml

1. <?xml version="1.0"?>
2. <web-app xmlns="http://java.sun.com/xml/ns/j2ee"
3.     xmlns:xsi="http://www.w3.org/TR/xmlschema-1/"
4.     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
5.     <display-name>PhoneBook</display-name>
6.     <servlet>
7.         <servlet-name>PhoneBook</servlet-name>
8.         <servlet-class>org.apache.tapestry.ApplicationServlet</servlet-class>
9.         <load-on-startup>1</load-on-startup>
10.     </servlet>
11.     <servlet-mapping>
12.         <servlet-name>PhoneBook</servlet-name>
13.         <url-pattern>/app</url-pattern>
14.     </servlet-mapping>
15. </web-app>

============================================================

实际测试中发现，启动Tomcat时发生如下错误，但工程仍然可以访问。哪位高手可以帮忙解疑。

2008/11/18 14:36:33 org.apache.catalina.core.AprLifecycleListener init
情報: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:/Java/MyEclipse 6.0/bin;D:/Java/MyEclipse 6.0/myeclipse/eclipse/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_6.0.0.zmyeclipse60020070820/tomcat/bin
2008/11/18 14:36:33 org.apache.coyote.http11.Http11Protocol init
情報: Coyote HTTP/1.1を http-8080 で初期化します
2008/11/18 14:36:33 org.apache.catalina.startup.Catalina load
情報: Initialization processed in 1735 ms
2008/11/18 14:36:34 org.apache.catalina.core.StandardService start
情報: サービス Catalina を起動します
2008/11/18 14:36:34 org.apache.catalina.core.StandardEngine start
情報: Starting Servlet Engine: Apache Tomcat/6.0.13
2008/11/18 14:36:35 org.apache.catalina.session.StandardManager doLoad
致命的: 持続されたセッションをロード中のIOExceptionです: java.io.EOFException
java.io.EOFException
 at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)
 at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Source)
 at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
 at java.io.ObjectInputStream.<init>(Unknown Source)
 at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectInputStream.java:58)
 at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:362)
 at org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
 at org.apache.catalina.session.StandardManager.start(StandardManager.java:637)
 at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:438)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4255)
 at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
 at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
 at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
 at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
 at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
 at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
 at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
 at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
 at org.apache.catalina.core.StandardService.start(StandardService.java:516)
 at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
 at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
 at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
2008/11/18 14:36:35 org.apache.catalina.session.StandardManager start
致命的: 永続記憶装置からセッションをロード中の例外です
java.io.EOFException
 at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)
 at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Source)
 at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
 at java.io.ObjectInputStream.<init>(Unknown Source)
 at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectInputStream.java:58)
 at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:362)
 at org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
 at org.apache.catalina.session.StandardManager.start(StandardManager.java:637)
 at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:438)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4255)
 at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
 at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
 at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
 at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
 at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
 at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
 at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
 at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
 at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
 at org.apache.catalina.core.StandardService.start(StandardService.java:516)
 at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
 at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
 at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
2008/11/18 14:36:42 org.apache.tapestry.ApplicationServlet init
情報: Initialized application servlet 'PhoneBook': 2,672 millis to create HiveMind Registry, 6,141 millis overall.
2008/11/18 14:36:42 org.apache.coyote.http11.Http11Protocol start
情報: Coyote HTTP/1.1を http-8080 で起動します
2008/11/18 14:36:42 org.apache.jk.common.ChannelSocket init
情報: JK: ajp13 listening on /0.0.0.0:8009
2008/11/18 14:36:42 org.apache.jk.server.JkMain start
情報: Jk running ID=0 time=0/62  config=null
2008/11/18 14:36:42 org.apache.catalina.startup.Catalina start
情報: Server startup in 8502 ms