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JSF2 + Primefaces3 + Spring3 & Hibernate4 Integration Project
- 博客分类:
- JSF
This article shows how to integrate JSF2, PrimeFaces3, Spring3 and Hibernate4 Technologies. It provides a general project template for Java developers.
Also if Spring is not used for Business and Data Access layer, JSF –PrimeFaces & Hibernate Integration Project can be offered.
Used Technologies :
JDK 1.6.0_31
Spring 3.1.1
JSF 2.1
Hibernate 4.1.0
Primefaces 3.1.1
MySQL Connector 5.1.17
MySQL 5.5.8
c3p0 0.9.1.2
Tomcat 7.0
Maven 3.0.2
STEP 1 : CREATE MAVEN PROJECT
A maven project is created as below. (It can be created by using Maven or IDE Plug-in).
STEP 2 : CREATE USER TABLE
A new USER Table is created by executing below script:
STEP 3 : LIBRARIES
Spring, JSF, Hibernate, Primefaces, MySQL and c3p0 dependencies are added to Maven’ s pom.xml.
STEP 4 : CREATE USER MODEL CLASS
A new User Model Class is created.
STEP 5 : CREATE USER MANAGED BEAN CLASS
User Managed Bean is created.
STEP 6 : CREATE IUserDAO INTERFACE
IUserDAO Interface provides methods of Data Access Layer. The data access layer manages all the logic to persist and retrieve the data from database.
STEP 7 : CREATE UserDAO CLASS
UserDAO Class is created by implementing IUserDAO Interface.
STEP 8 : CREATE IUserService INTERFACE
IUserService Interface provides methods to process the business logic.
STEP 9 : CREATE UserService CLASS
UserService Class is created by implementing IUserService Interface.
STEP 10 : CREATE applicationContext.xml
Spring Application Context’ s content is shown as follows :
STEP 11 : CREATE faces-config.xml
JSF Configuration is shown as follows :
STEP 12 : CREATE web.xml
web.xml is configured as follows :
STEP 13 : CREATE index.xhtml
index.xhtml is created as follows :
STEP 14 : CREATE success.xhtml
success.xhtml is created as follows :
STEP 15 : CREATE error.xhtml
error.xhtml is created as follows :
STEP 16 : DEPLOY PROJECT
After OTV_JSF_Spring_Hibernate Project is deployed to Tomcat, index page can be opened via following URL :
http://ip:port/OTV_JSF_Spring_Hibernate_Project-1.0-SNAPSHOT/pages/index.jsf
REFERENCES :
Spring Framework Reference 3.1.x Documentation
Hibernate 4.x Documentation
Primefaces 3.x Documentation
From:http://www.onlinetechvision.com/?p=566
Also if Spring is not used for Business and Data Access layer, JSF –PrimeFaces & Hibernate Integration Project can be offered.
Used Technologies :
JDK 1.6.0_31
Spring 3.1.1
JSF 2.1
Hibernate 4.1.0
Primefaces 3.1.1
MySQL Connector 5.1.17
MySQL 5.5.8
c3p0 0.9.1.2
Tomcat 7.0
Maven 3.0.2
STEP 1 : CREATE MAVEN PROJECT
A maven project is created as below. (It can be created by using Maven or IDE Plug-in).

STEP 2 : CREATE USER TABLE
A new USER Table is created by executing below script:
CREATE TABLE USER ( id int(11) NOT NULL, name varchar(45) NOT NULL, surname varchar(45) NOT NULL, PRIMARY KEY (`id`) );
STEP 3 : LIBRARIES
Spring, JSF, Hibernate, Primefaces, MySQL and c3p0 dependencies are added to Maven’ s pom.xml.
<properties> <spring.version>3.1.1.RELEASE</spring.version></properties> <dependencies> <!-- Spring 3 dependencies --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- JSF dependencies --> <dependency> <groupId>com.sun.faces</groupId> <artifactId>jsf-api</artifactId> <version>2.1.6</version> </dependency> <dependency> <groupId>com.sun.faces</groupId> <artifactId>jsf-impl</artifactId> <version>2.1.6</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- Primefaces dependency --> <dependency> <groupId>org.primefaces</groupId> <artifactId>primefaces</artifactId> <version>3.1.1</version> </dependency> <!-- Hibernate dependencies --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.1.0.Final</version> </dependency> <dependency> <groupId>javassist</groupId> <artifactId>javassist</artifactId> <version>3.12.1.GA</version> </dependency> <!-- MySQL Java Connector dependency --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.17</version> </dependency> <!-- c3p0 dependency --> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> </dependencies>
STEP 4 : CREATE USER MODEL CLASS
A new User Model Class is created.
package com.otv.model; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.Table; /** * *User Entity *@author onlinetechvision.com *@since 25 Mar 2012 *@version 1.0.0 * */ @Entity@Table(name="USER") public class User { private int id; private String name; private String surname; /** * Get User Id * * @return int - User Id */ @Id @Column(name="ID", unique = true, nullable = false) public int getId() { return id; } /** * Set User Id * * @param int - User Id */ public void setId(int id) { this.id = id; } /** * Get User Name * * @return String - User Name */ @Column(name="NAME", unique = true, nullable = false) public String getName() { return name; } /** * Set User Name * *@param String - User Name */ public void setName(String name) { this.name = name; } /** * Get User Surname * * @return String - User Surname */ @Column(name="SURNAME", unique = true, nullable = false) public String getSurname() { return surname; } /** * Set User Surname * * @param String - User Surname */ public void setSurname(String surname) { this.surname = surname; } @Override public String toString() { StringBuffer strBuff = new StringBuffer(); strBuff.append("id : ").append(getId()); strBuff.append(", name : ").append(getName()); strBuff.append(", surname : ").append(getSurname()); return strBuff.toString(); } }
STEP 5 : CREATE USER MANAGED BEAN CLASS
User Managed Bean is created.
package com.otv.managed.bean; import java.io.Serializable; import java.util.ArrayList; import java.util.List; import javax.faces.bean.ManagedBean; import javax.faces.bean.ManagedProperty; import javax.faces.bean.RequestScoped; import org.springframework.dao.DataAccessException; import com.otv.model.User; import com.otv.user.service.IUserService; /** * * User Managed Bean * * @author onlinetechvision.com * @since 25 Mar 2012 * @version 1.0.0 * */ @ManagedBean(name="userMB") @RequestScoped public class UserManagedBean implements Serializable { private static final long serialVersionUID = 1L; private static final String SUCCESS = "success"; private static final String ERROR = "error"; //Spring User Service is injected... @ManagedProperty(value="#{UserService}") IUserService userService; List<User> userList; private int id; private String name; private String surname; /** * Add User * * @return String - Response Message */ public String addUser() { try { User user = new User(); user.setId(getId()); user.setName(getName()); user.setSurname(getSurname()); getUserService().addUser(user); return SUCCESS; }catch (DataAccessException e) { e.printStackTrace(); } return ERROR; } /** * Reset Fields * */ public void reset() { this.setId(0); this.setName(""); this.setSurname(""); } /** * Get User List * * @return List - User List */ public List<User> getUserList() { userList = new ArrayList<User>(); userList.addAll(getUserService().getUsers()); return userList; } /** * Get User Service * * @return IUserService - User Service */ public IUserService getUserService() { return userService; } /** * Set User Service * * @param IUserService - User Service */ public void setUserService(IUserService userServic{ this.userService = userService; } /** * Set User List * * @param List - User List */ public void setUserList(List<User> userList) { this.userList = userList; } /** * Get User Id * * @return int - User Id */ public int getId() { return id; } /** * Set User Id * * @param int - User Id */ public void setId(int id) { this.id = id; } /** * Get User Name * * @return String - User Name */ public String getName() { return name; } /** * Set User Name * * @param String - User Name */ public void setName(String name) { this.name = name; } /** * Get User Surname * * @return String - User Surname */ public String getSurname() { return surname; } /** * Set User Surname * * @param String - User Surname */ public void setSurname(String surname) { this.surname = surname; } }
STEP 6 : CREATE IUserDAO INTERFACE
IUserDAO Interface provides methods of Data Access Layer. The data access layer manages all the logic to persist and retrieve the data from database.
package com.otv.user.dao; import java.util.List; import com.otv.model.User; /** * * User DAO Interface * * @author onlinetechvision.com * @since 25 Mar 2012 * @version 1.0.0 * */ public interface IUserDAO { /** * Add User * * @param User user */ public void addUser(User user); /** * Update User * * @param User user */ public void updateUser(User user); /** * Delete User * * @param User user */ public void deleteUser(User user); /** * Get User * * @param int User Id */ public User getUserById(int id); /** * Get User List * */ public List<User> getUsers();}
STEP 7 : CREATE UserDAO CLASS
UserDAO Class is created by implementing IUserDAO Interface.
package com.otv.user.dao; import java.util.List; import com.otv.model.User; import org.hibernate.SessionFactory; /** * * User DAO * * @author onlinetechvision.com * @since 25 Mar 2012 * @version 1.0.0 * */ public class UserDAO implements IUserDAO { private SessionFactory sessionFactory; /** * Get Hibernate Session Factory * * @return SessionFactory - Hibernate Session Factory */ public SessionFactory getSessionFactory() { return sessionFactory; } /** * Set Hibernate Session Factory * * @param SessionFactory - Hibernate Session Factory */ public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } /** * Add User * * @param User user */ @Override public void addUser(User user) { getSessionFactory().getCurrentSession().save(user); } /** * Delete User * * @param User user */ @Override public void deleteUser(User user) { getSessionFactory().getCurrentSession().delete(user); } /** * Update User * * @param User user */ @Override public void updateUser(User user) { getSessionFactory().getCurrentSession().update(user); } /** * Get User * * @param int User Id * @return User */ @Override public User getUserById(int id) { List list = getSessionFactory().getCurrentSession().createQuery("from User where id=?").setParameter(0, id).list(); return (User)list.get(0); } /** * Get User List * * @return List - User list */ @Override public List<User> getUsers() { List list = getSessionFactory().getCurrentSession().createQuery("from User").list(); return list; } }
STEP 8 : CREATE IUserService INTERFACE
IUserService Interface provides methods to process the business logic.
package com.otv.user.service; import java.util.List; import com.otv.model.User; /** * * User Service Interface * * @author onlinetechvision.com * @since 25 Mar 2012 * @version 1.0.0 * */ public interface IUserService { /** * Add User * * @param User user */ public void addUser(User user); /** * Update User * * @param User user */ public void updateUser(User user); /** * Delete User * * @param User user */ public void deleteUser(User user); /** * Get User * * @param int User Id */ public User getUserById(int id); /** * Get User List * * @return List - User list */ public List<User> getUsers(); }
STEP 9 : CREATE UserService CLASS
UserService Class is created by implementing IUserService Interface.
package com.otv.user.service; import java.util.List; import org.springframework.transaction.annotation.Transactional; import com.otv.model.User;import com.otv.user.dao.IUserDAO; /** * * User Service * * @author onlinetechvision.com * @since 25 Mar 2012 * @version 1.0.0 * */@Transactional(readOnly = true) public class UserService implements IUserService { // UserDAO is injected... IUserDAO userDAO; /** * Add User * * @param User user */ @Transactional(readOnly = false) @Override public void addUser(User user) { getUserDAO().addUser(user); } /** * Delete User * * @param User user */ @Transactional(readOnly = false) @Override public void deleteUser(User user) { getUserDAO().deleteUser(user); } /** * Update User * * @param User user */ @Transactional(readOnly = false) @Override public void updateUser(User user) { getUserDAO().updateUser(user); } /** * Get User * * @param int User Id */ @Override public User getUserById(int id) { return getUserDAO().getUserById(id); } /** * Get User List * */ @Override public List<User> getUsers() { return getUserDAO().getUsers(); } /** * Get User DAO * * @return IUserDAO - User DAO */ public IUserDAO getUserDAO() { return userDAO; } /** * Set User DAO * * @param IUserDAO - User DAO */ public void setUserDAO(IUserDAO userDAO) { this.userDAO = userDAO; } }
STEP 10 : CREATE applicationContext.xml
Spring Application Context’ s content is shown as follows :
<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:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- Beans Declaration --> <bean id="User" class="com.otv.model.User" /> <!-- User Service Declaration --> <bean id="UserService" class="com.otv.user.service.UserService"> <property name="userDAO" ref="UserDAO" /> </bean> <!-- User DAO Declaration --> <bean id="UserDAO" class="com.otv.user.dao.UserDAO"> <property name="sessionFactory" ref="SessionFactory" /> </bean> <!-- Data Source Declaration --> <bean id="DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass" value="com.mysql.jdbc.Driver" /> <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/Test" /> <property name="user" value="root" /> <property name="password" value="root" /> <property name="maxPoolSize" value="10" /> <property name="maxStatements" value="0" /> <property name="minPoolSize" value="5" /> </bean> <!-- Session Factory Declaration --> <bean id="SessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource" ref="DataSource" /> <property name="annotatedClasses"> <list> <value>com.otv.model.User</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop> <prop key="hibernate.show_sql">true</prop> </props> </property> </bean> <!-- Enable the configuration of transactional behavior based on annotations --> <tx:annotation-driven transaction-manager="txManager" /> <!-- Transaction Manager is defined --> <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="SessionFactory" /> </bean> </beans>
STEP 11 : CREATE faces-config.xml
JSF Configuration is shown as follows :
<?xml version="1.0" encoding="UTF-8"?> <faces-config xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd" version="2.0"> <!-- JSF and Spring are integrated --> <application> <el-resolver> org.springframework.web.jsf.el.SpringBeanFacesELResolver </el-resolver> </application> <!-- configuration of navigation rules --> <navigation-rule> <from-view-id>/pages/index.xhtml</from-view-id> <navigation-case> <from-outcome>success</from-outcome> <to-view-id>/pages/success.xhtml</to-view-id> </navigation-case> <navigation-case> <from-outcome>error</from-outcome> <to-view-id>/pages/error.xhtml</to-view-id> </navigation-case> </navigation-rule> </faces-config>
STEP 12 : CREATE web.xml
web.xml is configured as follows :
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>OTV_JSF_PrimeFaces_Spring_Hibernate</display-name> <!-- Spring Context Configuration' s Path definition --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/applicationContext.xml</param-value> </context-param> <!-- The Bootstrap listener to start up and shut down Spring's root WebApplicationContext. It is registered to Servlet Container --> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <listener> <listener-class> org.springframework.web.context.request.RequestContextListener </listener-class> </listener> <!-- Project Stage Level --> <context-param> <param-name>javax.faces.PROJECT_STAGE</param-name> <param-value>Development</param-value> </context-param> <!-- Welcome Page --> <welcome-file-list> <welcome-file>/pages/index.xhtml</welcome-file> </welcome-file-list> <!-- JSF Servlet is defined to container --> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!-- Mapping with servlet and url for the http requests. --> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.faces</url-pattern> </servlet-mapping> </web-app>
STEP 13 : CREATE index.xhtml
index.xhtml is created as follows :

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:p="http://primefaces.org/ui"> <h:head> <title>Welcome to OTV_JSF_Spring_Hibernate_Project</title> </h:head> <h:body> <h:form> <table> <tr> <td><h:outputLabel for="id" value="Id : " /></td> <td> <p:inputText id="id" value="#{userMB.id}"> <f:converter converterId="javax.faces.Integer" /> <p:ajax event="blur" update="idMsg" /> </p:inputText> <p:message id="idMsg" for="id" display="icon" /></td> </tr> <tr> <td><h:outputLabel for="name" value="Name : " /></td> <td><p:inputText id="name" value="#{userMB.name}"> <f:validateLength minimum="5" /> <p:ajax event="blur" update="nameMsg" /> </p:inputText> <p:message id="nameMsg" for="name" display="icon" /></td> </tr> <tr> <td><h:outputLabel for="surname" value="Surname : " /></td> <td> <p:inputText id="surname" value="#{userMB.surname}"> <f:validateLength minimum="5" /> <p:ajax event="blur" update="surnameMsg" /> </p:inputText> <p:message id="surnameMsg" for="surname" display="icon" /></td> </tr> <tr> <td> <p:commandButton id="addUser" value="Add" action="#{userMB.addUser}" ajax="false" /> </td> <td> <p:commandButton id="reset" value="Reset" action="#{userMB.reset}" ajax="false" /> </td> </tr> </table> </h:form> </h:body> </html>
STEP 14 : CREATE success.xhtml
success.xhtml is created as follows :

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:p="http://primefaces.org/ui"> <h:head> <title>Welcome to OTV_JSF_Spring_Hibernate_Project</title> </h:head> <h:body> <h:form> <h:outputText value="USERs : "></h:outputText> <p:dataTable id="users" var="user" value="#{userMB.userList}" style="width: 10%"> <p:column> <f:facet name="header"> <h:outputText value="ID" /> </f:facet> <h:outputText value="#{user.id}" /> </p:column> <p:column> <f:facet name="header"> <h:outputText value="Name" /> </f:facet> <h:outputText value="#{user.name}" /> </p:column> <p:column> <f:facet name="header"> <h:outputText value="Surname" /> </f:facet> <h:outputText value="#{user.surname}" /> </p:column> </p:dataTable> </h:form> </h:body> </html>
STEP 15 : CREATE error.xhtml
error.xhtml is created as follows :
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:p="http://primefaces.org/ui"> <h:head> <title>Welcome to JSF_PrimeFaces_Spring_Hibernate Project</title> </h:head> <body> <f:view> <h:form> <h:outputText value="Transaction Error has occurred!"></h:outputText> </h:form> </f:view> </body> </html>
STEP 16 : DEPLOY PROJECT
After OTV_JSF_Spring_Hibernate Project is deployed to Tomcat, index page can be opened via following URL :
http://ip:port/OTV_JSF_Spring_Hibernate_Project-1.0-SNAPSHOT/pages/index.jsf
REFERENCES :
Spring Framework Reference 3.1.x Documentation
Hibernate 4.x Documentation
Primefaces 3.x Documentation
From:http://www.onlinetechvision.com/?p=566
发表评论
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jsf+spring
2012-12-05 01:52 800附件为spring+jsf整合 -
JSF 2 + Spring 3 integration example
2012-12-05 00:41 1694In this tutorial, we will show ... -
primefaces cook book 源代码分享
2012-11-23 02:30 1403primefaces cook book 源代码分享 -
Full Web Application Tomcat JSF Primefaces JPA Hibernate – Part 2
2012-11-19 23:20 2214Full Web Application Tomcat JSF ... -
Full Web Application Tomcat JSF Primefaces JPA Hibernate – Part 1
2012-11-19 23:20 2615Full Web Application Tomcat JSF ... -
Lazy JSF Primefaces Datatable Pagination – Part 2
2012-11-18 19:19 1517Lazy JSF Primefaces Datatable P ... -
Lazy JSF Primefaces Datatable Pagination – Part 1
2012-11-18 19:12 1603Lazy JSF Primefaces Datatable P ...
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内容概要:本文详细介绍了基于‘光伏(PV)+蓄电池+负载’架构的双有源桥DC-DC变换器仿真方法及其在Matlab 2021b中的具体实现。首先解析了光伏系统的MPPT控制,通过扰动观察法使光伏板始终处于最大功率点。接着讨论了蓄电池的恒流充放电控制,利用PI控制器确保电池的安全和高效运作。然后阐述了双有源桥DC-DC变换器的闭环控制机制,借助PID控制器维持系统输出电压的稳定性。最后,文章展示了如何在Matlab Simulink环境下构建完整的仿真模型,涵盖各模块间的电气连接与信号交互,为新能源系统的优化提供了理论和技术支持。 适合人群:从事电力电子、新能源系统设计的研究人员和工程师,尤其是那些需要深入了解光伏储能系统工作原理的人群。 使用场景及目标:适用于希望掌握光伏储能系统中关键组件如MPPT、恒流充放电控制及双有源桥DC-DC变换器的设计与仿真的技术人员。目标是在实际工程项目中提高系统的效率和可靠性。 其他说明:文中提供的代码片段和建模思路有助于读者更好地理解和实践相关技术,同时也强调了一些常见的陷阱和调试技巧,帮助避免潜在的问题。
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内容概要:本文详细介绍了不同类型电机的调速方法,重点探讨了直流电机双闭环调速、永磁同步电机电流滞环闭环调速以及异步电机滞环电流调速。文中不仅提供了每种调速方法的基本原理和技术特点,还附带了相应的代码示例进行辅助解释。此外,文章对永磁同步电机的电流滞环调速与SVPWM调速进行了对比,指出了各自的优劣之处。最后,强调了在实际应用中选择合适调速方案的重要性。 适合人群:从事电机控制系统设计与开发的技术人员,尤其是有一定电机控制基础的研发人员。 使用场景及目标:适用于需要深入了解电机调速机制及其应用场景的专业人士。目标是帮助读者掌握不同电机调速方法的特点,以便在实际工程中做出最优选择。 其他说明:文章通过具体的代码实例展示了调速方法的实际应用,使读者能够更好地理解和实践相关技术。同时提醒读者在实际调试过程中要注意参数设置和硬件条件的影响。
人员晋升推荐表.xls
员工生日关怀方案
内容概要:本文详细介绍了对国际知名大厂的三个逆向ADC电路(SAR ADC、Sigma-Delta ADC和Pipeline ADC)进行深入剖析。作者通过Cadence Virtuoso平台研究了这些电路的标准单元库设计,探讨了各个电路的关键技术和实现细节。对于24bit Sigma-Delta ADC,重点讨论了其调制器部分的时钟相位分配和噪声整形技术;对于16bit SAR ADC,则关注其比较器阵列的独特设计以及动态锁存比较器的应用;而对于14bit Pipeline ADC,着重分析了其级间放大器设计和电荷共享技术。此外,文中还提到了在将这些设计适配到自家工艺过程中遇到的问题及其解决方案,如电容寄生效应、时序约束调整、运放结构优化等。 适合人群:从事模拟集成电路设计的专业人士,尤其是对ADC设计感兴趣的工程师和技术研究人员。 使用场景及目标:帮助读者深入了解高精度ADC的工作原理和设计技巧,掌握逆向工程技术在实际项目中的应用,提高对不同工艺节点下ADC设计的理解和适应能力。 其他说明:文中提供了大量具体的代码片段和仿真命令,便于读者理解和实践。同时,作者分享了许多宝贵的经验教训,强调了在逆向工程中需要注意的技术细节和潜在风险。
内容概要:本文详细介绍了大型立体仓库智能物流系统的构建与优化。该项目涉及一万多个库位、一百多台输送机和八台堆垛机,采用了西门子PLC作为控制核心,通过无线网桥与WCS和WMS系统对接。文章重点讲解了梯形图编程和功能块的应用,如输送机启停控制、堆垛机移动控制、路径规划、无线通讯处理以及异常处理机制。此外,还探讨了设备协同、逻辑优化、任务分配算法和速度曲线规划等方面的技术细节。 适合人群:从事工业自动化、智能仓储系统设计与开发的工程师和技术爱好者。 使用场景及目标:适用于智能仓储系统的设计、实施和维护,旨在提高系统的稳定性、效率和可维护性。 其他说明:文中提供了大量实际项目中的代码示例和调试经验,有助于读者理解和应用相关技术。
新员工月工作总结表.xlsx
内容概要:本文详细介绍了基于西门子S7-1500 PLC的汽车电子零件装配线集成解决方案。主要内容涵盖伺服轴控制、阿特拉斯拧紧枪控制、康耐视视觉检测系统以及HMI界面的设计与实现。文中展示了如何利用SCL语言将多种工业设备(如HMI、伺服电机、六轴机器人等)的功能封装为标准化功能块,从而提高系统的模块化程度和可复用性。同时,还分享了一些实际项目中的调试经验和优化技巧,如通过调整加减速曲线避免机械振动、设置扭矩保持时间和视觉检测的防抖定时器等。 适合人群:从事自动化控制领域的工程师和技术人员,尤其是熟悉PLC编程和工业自动化设备集成的专业人士。 使用场景及目标:适用于汽车制造行业的生产线控制系统设计与实施。主要目标是帮助工程师快速掌握如何使用SCL语言构建高效稳定的PLC控制系统,提升生产效率和产品质量。 其他说明:文中不仅提供了详细的代码示例,还结合具体的应用场景进行了深入剖析,有助于读者更好地理解和应用相关技术。此外,强调了模块化编程的优势,如减少重复劳动、便于维护升级等。
内容概要:本文详细介绍了如何在STM32、AT32和GD32等Cortex-M系列MCU上实现串口IAP(In Application Programming)Bootloader,支持远程升级及RS485升级。主要内容涵盖Bootloader的工作原理、内存分配、通信协议设计、Flash写入操作以及跳转应用程序的关键步骤。文中提供了具体的代码示例,如Bootloader主循环、RS485收发控制、Flash写入、CRC校验等,并分享了多个实战经验和注意事项,确保数据传输的可靠性。 适合人群:从事嵌入式系统开发的技术人员,尤其是对STM32、AT32、GD32等国产MCU有一定了解并希望掌握串口IAP技术的研发人员。 使用场景及目标:适用于需要远程升级固件的嵌入式项目,帮助开发者避免现场升级带来的不便,提高设备维护效率。目标是让读者能够独立实现一个可靠的串口IAP Bootloader,掌握RS485通信和Flash编程的关键技术。 其他说明:文中提到的代码和配置已在GitHub上提供,方便读者下载和实践。同时,作者分享了许多实战经验和常见问题解决方案,有助于减少开发过程中可能出现的问题。
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学生会干部竞选清心简约.pptx
内容概要:本文深入探讨了光伏发电三相并网模型的技术细节,涵盖了光伏板、Boost升压电路、三相并网逆变器、MPPT最大功率点跟踪控制(扰动观察法)、PLL锁相环、dq解耦控制以及电流内环电压外环的并网控制策略。通过Python和Matlab代码片段展示了各个组件的工作原理及其相互协作的方式。实验结果显示,在复杂工况下,该系统能够保持直流母线电压稳定,THD仅为2.72%,并网电流波形优良,证明了其高效性和稳定性。 适用人群:从事电力电子、新能源发电领域的研究人员和技术人员,特别是对光伏发电并网技术感兴趣的读者。 使用场景及目标:适用于研究和开发高效的光伏发电并网系统,旨在提高系统的稳定性和效率,特别是在面对光照强度变化和负载突变的情况下。 其他说明:文中提供的代码片段有助于理解和实现相关控制算法,同时强调了实际应用中的注意事项,如参数选择和调试技巧。