搭建Jquery+SpringMVC+Spring+Hibernate+MySQL平台
一. 开发环境
1. 点击此查看并下载需要的 Eclipse IDE for Java EE Developers 开发工具,依赖于java,推荐选用32位
2. 点击此查看并下载需要的 MySQL Server 数据库,推荐选用32位
3. 点击此找到并下载 Java SE Development Kit 6u45,有些dll只能在32位上运行,推荐选用32位
4. 点击此找到并下载 apache-tomcat-6.0.48.zip,兼容32位和64位版本
5. 点击此下载 ims 工程文件
6. 点击此查看 maven 私服搭建指南
7. 点击此查看 maven 上传第三方jar
二. 工程搭建
1. Eclipse --> File --> New --> Dynamic Web Project --> 输入工程名 ims --> Next -->
修改 Default output folder 为:WebContent/WEB-INF/classes --> Finish
2. 将下载的工程文件按目录复制到 ims 工程中
注:ims全称:information management system
三. 工程目录结构介绍
注:以下的xxx均表示子项目名称,如:
子项目 sys 全称:system,基础信息、权限管理系统
子项目 mms 全称:material management system,材料管理系统
子项目 iot 全称:Internet of things,物联网系统
src
|--com
| |--ims
| | |--common
| | |--persistence
| | | |--base
| | | |--dao
| | | | |--xxx
| | | | |--impl
| | | |--model
| | | |--xxx
| | |--service
| | | |--xxx
| | | |--impl
| | |--web
| | | |--controller
| | | | |---xxx
WebContent
|--common
|--content
| |--css
| |--images
| |--js
|--sql
| |--xxx
|--view
| |--xxx
|--viewModel
| |--xxx
四. jar包介绍
1. spring-framework-4.3.4.RELEASE,可点击此下载并在 libs 文件夹下得到:
spring-aop-4.3.4.RELEASE.jar spring-beans-4.3.4.RELEASE.jar spring-context-4.3.4.RELEASE.jar spring-core-4.3.4.RELEASE.jar spring-expression-4.3.4.RELEASE.jar spring-jdbc-4.3.4.RELEASE.jar spring-orm-4.3.4.RELEASE.jar spring-tx-4.3.4.RELEASE.jar spring-web-4.3.4.RELEASE.jar spring-webmvc-4.3.4.RELEASE.jar
2. aspectjweaver-1.8.9.jar,spring AOP 依赖 aspectj 来实现的,可点击此下载
3. jackson-2.3.0,springMVC利用@ResponBody标签将Map,List转为json返回,支持 spring-4.3.4 的最低版本,可点击此下载
jackson-annotations-2.3.0.jar
jackson-core-2.3.0.jar
jackson-databind-2.3.0.jar
4. slf4j-1.7.21,spring 的日记记录采用:jc-over-slf4j ---> slf4j ---> log4j,可点击此下载得到:
jcl-over-slf4j-1.7.21.jar slf4j-api-1.7.21.jar slf4j-log4j12-1.7.21.jar
5. log4j-1.2.17.jar,支持 java 1.6、spring-4.3.4 的最高稳定版本,可点击此下载
6. log4jdbc4-1.2.1.jar,jdbc层日志框架,可点击此下载
7. hibernate-release-4.2.21.Final,支持 java 1.6 的最高版本,可点击此下载并在 libs/required 文件夹下得到:
antlr-2.7.7.jar dom4j-1.6.1.jar hibernate-commons-annotations-4.0.2.Final.jar hibernate-core-4.2.21.Final.jar hibernate-jpa-2.0-api-1.0.1.Final.jar javassist-3.18.1-GA.jar jboss-logging-3.1.0.GA.jar jboss-transaction-api_1.1_spec-1.0.1.Final.jar
8. mysql-connector-java-5.1.40-bin.jar,mysql驱动包,可点击此下载
9. fastjson-1.2.21.jar
10. commons-lang3-3.5.jar
11. pom.xml
<properties> <org.slf4j-version>1.7.21</org.slf4j-version> <org.springframework.version>4.3.4.RELEASE</org.springframework.version> <com.fasterxml.jackson.core-version>2.3.0</com.fasterxml.jackson.coree-version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${org.springframework.version}</version> </dependency> <!-- spring AOP 依赖 aspectj 来实现 --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.9</version> </dependency> <!-- springMVC利用@ResponBody标签将Map,ListZ转为json返回 --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${com.fasterxml.jackson.core-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${com.fasterxml.jackson.core-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${com.fasterxml.jackson.core-version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> </dependency> <!-- fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.21</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${org.slf4j-version}</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.5</version> </dependency> </dependencies> <build> <finalName>ims</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.7</version> <configuration> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.5.1</version> <configuration> <source>1.8</source> <target>1.8</target> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-clean-plugin</artifactId> <version>2.6.1</version> <configuration> <failOnError>false</failOnError> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.6</version> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-source-plugin</artifactId> <version>2.4</version> <executions> <execution> <id>attach-sources</id> <goals> <goal>jar</goal> </goals> </excution> </excutions> </plugin> <!-- 拷贝依赖包 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.10</version> <executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>${project.build.directory}/lib</outputDirectory> <excludeTransitive>false</excludeTransitive> <stripVersion>true</stripVersion> </configuration> </excution> </excutions> </plugin> <!-- 将打包后生成的jar复制到指定路径 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-antrun-plugin</artifactId> <executions> <execution> <id>copy-source</id> <phase>package</phase> <goals> <goal>run</goal> </goals> <configuration> <tasks> <copy tofile="${project.build.directory}/lib/${project.name}.${project.packaging}" file="${project.build.directory}/${project.build.finalName}.${project.packaging}" /> </tasks> </configuration> </excution> </excutions> </plugin> </plugins> </build>
五. 配置文件介绍
1. applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd"> <context:component-scan base-package="com" use-default-filters="false"> <context:include-filter type="aspectj" expression="com.ims.persistence.dao..*.impl.*DaoImpl"/> <context:include-filter type="aspectj" expression="com.ims.service..*.impl.*BSImpl"/> </context:component-scan> <!-- log4jdbc,需要依赖slf4j框架,拦截输出完整sql语句 --> <bean id="log4jdbcInterceptor" class="net.sf.log4jdbc.DataSourceSpyInterceptor" /> <bean id="dataSourceLog4jdbcAutoProxyCreator" class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator"> <property name="interceptorNames"> <list> <value>log4jdbcInterceptor</value> </list> </property> <property name="beanNames"> <list> <value>xxxDatasource</value> </list> </property> </bean> </beans>
2. applicationContextXxx.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd"> <bean id="xxxDatasource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/xxx?characterEncoding=utf8" /> <property name="username" value="root" /> <property name="password" value="123456" /> </bean> <bean id="xxxSessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="configLocation" value="classpath:hibernate.cfg.xml"/> <property name="dataSource" ref="xxxDatasource" /> <property name="packagesToScan"> <list> <value>com.ims.persistence.model.xxx</value> </list> </property> </bean> <bean id="xxxTransactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="xxxSessionFactory"/> </bean> <tx:advice id="xxxTxAdvice" transaction-manager="xxxTransactionManager"> <tx:attributes> <tx:method name="find*" isolation="READ_COMMITTED" read-only="true"/> <tx:method name="get*" isolation="READ_COMMITTED" read-only="true"/> <tx:method name="*" isolation="READ_COMMITTED" rollback-for="Throwable" /> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="xxxTxPointcut" expression="execution(* com.ims.service.xxx.impl..*BSImpl.*(..))"/> <aop:advisor advice-ref="xxxTxAdvice" pointcut-ref="xxxTxPointcut" order="0"/> </aop:config> <bean id="xxxBaseDao" class="com.ims.persistence.dao.xxx.impl.XxxBaseDaoImpl"> <property name="sessionFactory" ref="xxxSessionFactory"/> </bean> </beans>
3. controllerServlet.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"> <mvc:annotation-driven /> <context:component-scan base-package="com" use-default-filters="false"> <context:include-filter type="aspectj" expression="com.ims.web.controller..*Controller"/> </context:component-scan> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/view/" /> </bean> </beans>
4. hibernate.cfg.xml
<?xml version='1.0' encoding='UTF-8'?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="hibernate.order_updates">true</property> <property name="hibernate.show_sql">false</property> <!-- none --> <property name="hibernate.hbm2ddl.auto">update</property> <property name="hibernate.c3p0.max_size">30</property> <property name="hibernate.c3p0.min_size">5</property> <property name="hibernate.c3p0.timeout">3000</property> <property name="hibernate.c3p0.max_statements">50</property> <!--每隔多少秒检测连接是否可正常使用 --> <property name="c3p0.idle_test_period">121</property> <!--当池中的连接耗尽的时候,一次性增加的连接数量,默认为3--> <property name="c3p0.acquire_increment">1</property> <property name="c3p0.validate">true</property> <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property> </session-factory> </hibernate-configuration>
5. log4j.properties
#输出级别和输出位置 ; 包中只有级别大于或等于配置级别,才允许输出
log4j.rootLogger=WARN,console,roll
#控制台输出
log4j.appender.console = org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d %p [%c] - %m%n
#按日期滚动输出
log4j.appender.roll=org.apache.log4j.DailyRollingFileAppender
log4j.appender.roll.File=${catalina.base}/logs/ims/ims.log
log4j.appender.roll.layout=org.apache.log4j.PatternLayout
log4j.appender.roll.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %p %t %c %m%n
#继承rootLogger的输出位置
log4j.logger.com.ims = WARN
log4j.logger.org.hibernate.cache = ERROR
log4j.logger.org.directwebremoting = ERROR
#显示sql语句的参数
#log4j.logger.org.hibernate.type=trace
log4j.logger.jdbc.connection=OFF
log4j.logger.jdbc.audit=OFF
log4j.logger.jdbc.resultset=OFF
log4j.logger.jdbc.sqlonly=OFF
#INFO、OFF
log4j.logger.jdbc.sqltiming=INFO
6. web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:web="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_4.xsd
http://xmlns.jcp.org/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.4">
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:applicationContext.xml,
classpath:applicationContextXxx.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>controller</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:controllerServlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>controller</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
六. 类文件介绍
1. 基础controller类
功能:设置请求、响应对象;session、cookie操作;ajax访问返回json数据;
1.1. BaseController.java,工程的基础controller类
1.2. XxxBaseController.java,子项目的基础controller类:
package com.ims.web.controller.xxx;
import com.ims.web.controller.BaseController;
public class XxxBaseController extends BaseController{
}
2. 基础dao类
功能:数据库的保存、更新、删除;sql、hql查询;分页查询;调用存储过程
2.1. 工程的基础dao类
BaseDao.java
package com.ims.persistence.base;
import java.io.Serializable;
import java.util.List;
import java.util.Map;
import org.hibernate.criterion.DetachedCriteria;
/**
* 统一数据访问接口
*/
public interface BaseDao<T extends Serializable> {
/**
* 保存实体对象
* @param entity 实体对象
*/
public void save(T entity);
/**
* 更新实体对象
* @param 实体对象
*/
public void update(T entity);
/**
* 保存或更新实体对象
* @param entity 实体对象
*/
public void saveOrUpdate(T entity);
/**
* 删除实体对象
* @param entity 实体对象
*/
public void delete(T entity);
/**
* 查询hql语句,返回唯一结果
* @param hql
*/
public Object findUniqueResult(String hql);
/**
* 执行sql语句,更新数据库
* @param sql
*/
public void updateBySql(String sql);
/**
* 通过Criteria对象查询,返回实体对象结果集
* @param detachedCriteria 离线的Criteria对象
* @return 实体对象结果集
*/
public List findByCriteria(DetachedCriteria detachedCriteria);
/**
* 通过sql语句查询,返回map对象结果集
* @param sql
* @return map对象结果集
*/
public List<Map<String, Object>> findBySql(String sql);
/**
* 查询sql语句,返回唯一结果
* @param sql
*/
public Object findUniqueResultBySql(String sql);
/**
* 通过Criteria对象查询,返回结果集的记录数
* @param detachedCriteria 离线的Criteria对象
* @return 结果集的记录数
*/
public long getCount(DetachedCriteria detachedCriteria);
/**
* 通过Criteria对象进行分页查询,返回实体对象结果集
* @param pageNum 第几页
* @param pageSize 每页大小
* @param detachedCriteria 离线的Criteria对象
* @return 实体对象结果集
*/
public List<T> findPage(int pageNum, int pageSize, DetachedCriteria detachedCriteria);
/**
* 通过sql语句,进行分页查询,返回分页对象
* @param pageNum 第几页
* @param pageSize 每页大小
* @param sql
* @return 分页对象
*/
public Pagination findPage(int pageNum, int pageSize, String sql); // 查找分页对象列表
/**
* 调用存储过程,返回单结果集
* @param proceName 存储过程名称
* @param params 输入参数集合
* @return map对象结果集
*/
public List<Map<String, Object>> callProcedure(String proceName, final List<Object> params);
}
BaseDaoImpl.java
package com.ims.persistence.base;
import java.io.Serializable;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.hibernate.Criteria;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.hibernate.jdbc.Work;
public class BaseDaoImpl<T extends Serializable> implements BaseDao<T>{
private SessionFactory sessionFactory;
public BaseDaoImpl(){
super();
}
public SessionFactory getSessionFactory() {
return sessionFactory;
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
/**
* 返回数据库session对象
* @return
*/
protected Session getSession(){
return sessionFactory.getCurrentSession();
}
/**
* 保存实体对象
* @param entity 实体对象
*/
@Override
public void save(T entity){
Session session = getSession();
session.save(entity);
session.flush();
session.evict(entity);
}
/**
* 更新实体对象
* @param 实体对象
*/
@Override
public void update(T entity){
Session session = getSession();
session.update(entity);
session.flush();
session.evict(entity);
}
/**
* 保存或更新实体对象
* @param entity 实体对象
*/
@Override
public void saveOrUpdate(T entity) {
Session session = getSession();
session.saveOrUpdate(entity);
session.flush();
session.evict(entity);
}
/**
* 删除实体对象
* @param entity 实体对象
*/
@Override
public void delete(T entity){
Session session = getSession();
session.delete(entity);
session.flush();
session.evict(entity);
}
/**
* 查询hql语句,返回唯一结果
* @param hql
*/
@Override
public Object findUniqueResult(String hql){
Query query = getSession().createQuery(hql);
return query.uniqueResult();
}
/**
* 执行sql语句,更新数据库
* @param sql
*/
@Override
public void updateBySql(final String sql){
getSession().doWork(new Work() {
@Override
public void execute(Connection connection) throws SQLException {
connection.prepareStatement(sql).executeUpdate();
}
});
}
/**
* 通过Criteria对象查询,返回实体对象结果集
* @param detachedCriteria 离线的Criteria对象
* @return 实体对象结果集
*/
@Override
public List findByCriteria(DetachedCriteria detachedCriteria){
Criteria criteria = detachedCriteria.getExecutableCriteria(getSession());
List records = criteria.list();
return records;
}
/**
* 通过sql语句查询,返回map对象结果集
* @param sql
* @return map对象结果集
*/
@Override
public List<Map<String, Object>> findBySql(final String sql){
final List<Map<String, Object>> result = new ArrayList<Map<String, Object>>();
getSession().doWork(new Work() {
@Override
public void execute(Connection connection) throws SQLException {
ResultSet rs = connection.prepareStatement(sql).executeQuery();
result.addAll(RsHelper.rSToList(rs));
}
});
return result;
}
/**
* 查询sql语句,返回唯一结果
* @param sql
*/
@Override
public Object findUniqueResultBySql(String sql) {
return getSession().createSQLQuery(sql.toString()).uniqueResult();
}
/**
* 通过Criteria对象查询,返回结果集的记录数
* @param detachedCriteria 离线的Criteria对象
* @return 结果集的记录数
*/
@Override
public long getCount(DetachedCriteria detachedCriteria) {
Criteria criteria = detachedCriteria.getExecutableCriteria(getSession());
Object object = criteria.setProjection(Projections.rowCount()).uniqueResult();
criteria.setProjection(null);
Long totalRow = Long.valueOf(String.valueOf(object));
return totalRow;
}
/**
* 通过Criteria对象进行分页查询,返回实体对象结果集
* @param pageNum 第几页
* @param pageSize 每页大小
* @param detachedCriteria 离线的Criteria对象
* @return 实体对象结果集
*/
@Override
public List<T> findPage(int pageNum, int pageSize,
DetachedCriteria detachedCriteria){
Criteria criteria = detachedCriteria.getExecutableCriteria(getSession());
List<T> records = criteria.setFirstResult((pageNum-1) * pageSize).setMaxResults(pageSize).list();
return records;
}
/**
* 通过sql语句,进行分页查询,返回分页对象
* @param pageNum 第几页
* @param pageSize 每页大小
* @param sql
* @return 分页对象
*/
@Override
public Pagination findPage(final int pageNum, final int pageSize,final String sql){
final Pagination page = new Pagination();
getSession().doWork(new Work() {
@Override
public void execute(Connection connection) throws SQLException {
String countSql = MessageFormat.format("select count(*) from ({0}) page", sql);
ResultSet rs = connection.prepareStatement(countSql).executeQuery();
page.setTotal(Long.valueOf(RsHelper.getUniqueResult(rs).toString()));
long firstResult = (pageNum - 1)*pageSize;
String selectSql = MessageFormat.format("select * from ({0}) page limit {1},{2}", sql, firstResult, firstResult+pageSize);
page.setRows(RsHelper.rSToList(connection.prepareStatement(selectSql).executeQuery()));
}
});
return