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Signed-off-by: chenhaoxiang <[email protected]>
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‎Database-support-package/README.md

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���ݿ�֧�ְ�
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数据库支持包

‎myPagesDividedWeb/.classpath

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
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<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.j2eedt.core.MYECLIPSE_JAVAEE_6_CONTAINER"/>
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<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.web.container"/>
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<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
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<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
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<classpathentry kind="output" path="WebRoot/WEB-INF/classes"/>
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</classpath>

‎myPagesDividedWeb/.mymetadata

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<?xml version="1.0" encoding="UTF-8"?>
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<project-module
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type="WEB"
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name="myPagesDividedWeb"
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id="myeclipse.1471319255861"
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context-root="/myPagesDividedWeb"
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j2ee-spec="6.0"
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archive="myPagesDividedWeb.war">
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<attributes>
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<attribute name="webrootdir" value="WebRoot" />
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</attributes>
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</project-module>
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‎myPagesDividedWeb/.project

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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>myPagesDividedWeb</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.wst.common.project.facet.core.builder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>com.genuitec.eclipse.j2eedt.core.WebClasspathBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>com.genuitec.eclipse.j2eedt.core.J2EEProjectValidator</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>com.genuitec.eclipse.j2eedt.core.DeploymentDescriptorValidator</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.wst.validation.validationbuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>com.genuitec.eclipse.ast.deploy.core.DeploymentBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>com.genuitec.eclipse.ast.deploy.core.deploymentnature</nature>
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<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
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<nature>com.genuitec.eclipse.j2eedt.core.webnature</nature>
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<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
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<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
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<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
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</natures>
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</projectDescription>

‎myPagesDividedWeb/.settings/.jsdtscope

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="WebRoot"/>
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<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.JRE_CONTAINER"/>
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<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.WebProject">
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<attributes>
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<attribute name="hide" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.baseBrowserLibrary"/>
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<classpathentry kind="output" path=""/>
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</classpath>

‎myPagesDividedWeb/.settings/org.eclipse.jdt.core.prefs

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#Tue Aug 16 11:47:36 CST 2016
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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
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org.eclipse.jdt.core.compiler.compliance=1.6
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org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
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org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
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org.eclipse.jdt.core.compiler.source=1.6

‎myPagesDividedWeb/.settings/org.eclipse.wst.common.component

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<?xml version="1.0" encoding="UTF-8"?>
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<project-modules id="moduleCoreId" project-version="1.5.0">
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<wb-module deploy-name="myPagesDividedWeb">
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<wb-resource deploy-path="/" source-path="/WebRoot"/>
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<wb-resource deploy-path="/WEB-INF/classes" source-path="/src"/>
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<property name="context-root" value="/myPagesDividedWeb"/>
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<property name="java-output-path" value="/myPagesDividedWeb/WebRoot/WEB-INF/classes"/>
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</wb-module>
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</project-modules>

‎myPagesDividedWeb/.settings/org.eclipse.wst.common.project.facet.core.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<faceted-project>
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<fixed facet="wst.jsdt.web"/>
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<installed facet="java" version="1.6"/>
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<installed facet="jst.web" version="3.0"/>
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<installed facet="wst.jsdt.web" version="1.0"/>
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</faceted-project>

‎myPagesDividedWeb/.settings/org.eclipse.wst.jsdt.ui.superType.container

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org.eclipse.wst.jsdt.launching.baseBrowserLibrary

‎myPagesDividedWeb/.settings/org.eclipse.wst.jsdt.ui.superType.name

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Window

‎myPagesDividedWeb/README.md

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JavaWeb分页技术1
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分页,是一种将所有数据分段展示给用户的技术.用户每次看到的不 是全部数据,而是其中的一部分,如果在其中没有找到自己想要的内容,用户可以通过指定页码或是点上/下一页的方式进行翻页。
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本例演示静态分页，也就是先设置好每页显示10行，再根据总行数，来算出总页数，将所有页数的页号都显示出来。
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相关算法(技术):
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总行数(num): select count(1) from stud;
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每页显示的行数(n): 固定值---已知的一个常量
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页数: pageSize= num/n + (num%n==0)?0:1
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当前页号: currentPage
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当前要显示的页面数据的起始行号和终止行号
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startN: (currentPage-1)*pageSize
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如何显示从startN开始的pageSize条记录
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select * from stud limit startN, pageSize;
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‎myPagesDividedWeb/WebRoot/META-INF/MANIFEST.MF

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Manifest-Version: 1.0
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Class-Path:
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‎myPagesDividedWeb/WebRoot/WEB-INF/classes/c3p0-config.xml

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<c3p0-config>
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<!-- 默认配置，如果没有指定则使用这个配置 -->
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<default-config>
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<property name="driverClass">com.mysql.jdbc.Driver</property>
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<property name="jdbcUrl">
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<![CDATA[jdbc:mysql://127.0.0.1:3306/hncu?useUnicode=true&characterEncoding=UTF-8]]>
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</property>
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<property name="user">root</property>
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<property name="password">1234</property>
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<!-- 初始化池大小 -->
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<property name="initialPoolSize">2</property>
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<!-- 最大空闲时间 -->
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<property name="maxIdleTime">30</property>
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<!-- 最多有多少个连接 -->
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<property name="maxPoolSize">10</property>
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<!-- 最少几个连接 -->
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<property name="minPoolSize">2</property>
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<!-- 每次最多可以执行多少个批处理语句 -->
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<property name="maxStatements">50</property>
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</default-config>
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<!-- 命名的配置 -->
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<named-config name="demo">
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<property name="driverClass">com.mysql.jdbc.Driver</property>
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<property name="jdbcUrl"><![CDATA[jdbc:mysql://127.0.0.1:3306/hncu?useUnicode=true&characterEncoding=UTF-8]]></property>
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<property name="user">root</property>
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<property name="password">1234</property>
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<property name="acquireIncrement">5</property><!-- 如果池中数据连接不够时一次增长多少个 -->
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<property name="initialPoolSize">100</property>
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<property name="minPoolSize">50</property>
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<property name="maxPoolSize">1000</property>
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<property name="maxStatements">0</property>
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<property name="maxStatementsPerConnection">5</property> <!-- he's important, but there's only one of him -->
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</named-config>
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</c3p0-config>

‎myPagesDividedWeb/WebRoot/WEB-INF/classes/cn/hncu/dao/IPageDAO.class

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‎myPagesDividedWeb/WebRoot/WEB-INF/classes/cn/hncu/dao/PageJdbc.class

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‎myPagesDividedWeb/WebRoot/WEB-INF/classes/cn/hncu/pubs/C3p0Pool.class

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‎myPagesDividedWeb/WebRoot/WEB-INF/classes/cn/hncu/service/IPageService.class

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‎myPagesDividedWeb/WebRoot/WEB-INF/classes/cn/hncu/service/PageServiceImpl.class

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‎myPagesDividedWeb/WebRoot/WEB-INF/classes/cn/hncu/servlet/PageServlet.class

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‎myPagesDividedWeb/WebRoot/WEB-INF/lib/c3p0-0.9.1.2.jar

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‎myPagesDividedWeb/WebRoot/WEB-INF/lib/commons-dbutils-1.6.jar

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‎myPagesDividedWeb/WebRoot/WEB-INF/lib/mysql-connector-java-5.1.39-bin.jar

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‎myPagesDividedWeb/WebRoot/WEB-INF/web.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<web-app version="3.0"
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xmlns="http://java.sun.com/xml/ns/javaee"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
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http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
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<display-name></display-name>
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<servlet>
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<servlet-name>PageServlet</servlet-name>
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<servlet-class>cn.hncu.servlet.PageServlet</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>PageServlet</servlet-name>
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<url-pattern>/PageServlet</url-pattern>
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<!-- 这里的/代表项目根目录下 -->
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</servlet-mapping>
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<welcome-file-list>
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<welcome-file>index.jsp</welcome-file>
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</welcome-file-list>
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</web-app>

‎myPagesDividedWeb/WebRoot/css/table.css

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body{
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text-align: center;
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}
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table{
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border: 1px solid blue;
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width: 500px;
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border-collapse: collapse;/*为表格设置合并边框模型：*/
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margin: auto;
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}
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td,th,tr{
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border: 1px solid blue;
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}
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.pc{
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width: 30px;
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height: 30px;
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border: 1px solid #e1e2e3;
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border-top-color: rgb(225, 226, 227);
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border-top-style: solid;
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border-top-width: 1px;
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border-right-color: rgb(225, 226, 227);
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border-right-style: solid;
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border-right-width: 1px;
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border-bottom-color: rgb(225, 226, 227);
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border-bottom-style: solid;
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border-bottom-width: 1px;
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border-left-color: rgb(225, 226, 227);
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border-left-style: solid;
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border-left-width: 1px;
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}
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.now {
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display: block;
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}

‎myPagesDividedWeb/WebRoot/index.jsp

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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
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<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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</head>
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<body>
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<c:redirect url="/PageServlet"></c:redirect>
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</body>
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</html>

‎myPagesDividedWeb/WebRoot/jsps/show.jsp

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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
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<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title>演示数据分页显示</title>
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<link rel="stylesheet" href="<c:url value='/css/table.css' />" />
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<script type="text/javascript">
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function sub(obj){
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window.location.href="<c:url value='/PageServlet?page=' />"+obj.value;
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}
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</script>
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</head>
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<body>
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<h3>当前页的内容:</h3>
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<table>
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<tr><th>学号</th><th>姓名</th></tr>
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<c:forEach items="${result.datas}" var="map">
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<tr>
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<td>${map.id}</td>
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<td>${map.name}</td>
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</tr>
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</c:forEach>
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</table>
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<c:if test="${result.currentPage!=1}">
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<span class="pc">
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<a href='<c:url value="/PageServlet?page=${result.currentPage-1}"></c:url>'>上一页</a>
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</span>
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</c:if>
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&nbsp;&nbsp;
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<c:forEach begin="1" end="${result.pageCount}" var="idx">
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<c:if test="${idx==result.currentPage}" var="isNow">
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<span class=now>${idx}</span>
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</c:if>
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<c:if test="${!isNow }">
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<span class="pc">
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<a href='<c:url value="/PageServlet?page=${idx}"></c:url>'>${idx}</a>
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</span>
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</c:if>
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&nbsp;&nbsp;
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</c:forEach>
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<c:if test="${result.currentPage!=result.pageCount}">
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<span class="pc">
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<a href="<c:url value='/PageServlet?page=${result.currentPage+1}'></c:url>">下一页</a>
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</span>
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</c:if>
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<br/><br/>
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<!-- 复选框 -->
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<select onchange="sub(this)">
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<c:forEach begin="1" end="${result.pageCount}" var="idx">
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<option <c:if test="${idx==result.currentPage}">selected="selected"</c:if> value="${idx}" >
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第${idx}页
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</option>
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</c:forEach>
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</select>
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</body>
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</html>

‎myPagesDividedWeb/src/c3p0-config.xml

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<c3p0-config>
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<!-- 默认配置，如果没有指定则使用这个配置 -->
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<default-config>
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<property name="driverClass">com.mysql.jdbc.Driver</property>
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<property name="jdbcUrl">
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<![CDATA[jdbc:mysql://127.0.0.1:3306/hncu?useUnicode=true&characterEncoding=UTF-8]]>
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</property>
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<property name="user">root</property>
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<property name="password">1234</property>
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<!-- 初始化池大小 -->
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<property name="initialPoolSize">2</property>
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<!-- 最大空闲时间 -->
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<property name="maxIdleTime">30</property>
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<!-- 最多有多少个连接 -->
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<property name="maxPoolSize">10</property>
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<!-- 最少几个连接 -->
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<property name="minPoolSize">2</property>
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<!-- 每次最多可以执行多少个批处理语句 -->
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<property name="maxStatements">50</property>
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</default-config>
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<!-- 命名的配置 -->
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<named-config name="demo">
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<property name="driverClass">com.mysql.jdbc.Driver</property>
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<property name="jdbcUrl"><![CDATA[jdbc:mysql://127.0.0.1:3306/hncu?useUnicode=true&characterEncoding=UTF-8]]></property>
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<property name="user">root</property>
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<property name="password">1234</property>
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<property name="acquireIncrement">5</property><!-- 如果池中数据连接不够时一次增长多少个 -->
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<property name="initialPoolSize">100</property>
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<property name="minPoolSize">50</property>
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<property name="maxPoolSize">1000</property>
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<property name="maxStatements">0</property>
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<property name="maxStatementsPerConnection">5</property> <!-- he's important, but there's only one of him -->
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</named-config>
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</c3p0-config>

‎myPagesDividedWeb/src/cn/hncu/dao/IPageDAO.java

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package cn.hncu.dao;
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import java.sql.SQLException;
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import java.util.Map;
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public interface IPageDAO {
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public Map<String, Object> query(Integer pageNo) throws NumberFormatException, SQLException;
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}

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