簡單的SSS框架整合（簡單的註冊登入介面）
阿新 • • 發佈：2018-12-16
1、建立一個maven專案 2、pom.xml匯入依賴jar包（這裡需要注意的是jar包的完整性，不然會報錯）
Junit，spring-test：用於單元測試（不測試可以不加）；spring-data-jpa（1.11.3）；spring-webmvc（4.3.8）；hibernate-core（5.0.11）；hibernate-entitymanager（5.0.11）；javax.servlet-api（3.1.0）；javax.servet.jsp-api（2.2.1）；Jstl（1.2），standard（1.1.2）：在專案中使用JSTL和EL表示式；mysql-connector-java（5.1.29）：資料庫驅動；c3p0（0.9.5）；jackson-databind（2.9.6）：用於資料返回（版本太低不支援）；slf4j-log4j12（1.6.4）
3、建立資料庫驅動檔案：db.properties
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/sss
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=root
4、建立列印日誌的檔案：log4j.properties
log4j.rootLogger=INFO,Console,File #\u5B9A\u4E49\u65E5\u5FD7\u8F93\u51FA\u76EE\u7684\u5730\u4E3A\u63A7\u5236\u53F0 log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.Target=System.out #\u53EF\u4EE5\u7075\u6D3B\u5730\u6307\u5B9A\u65E5\u5FD7\u8F93\u51FA\u683C\u5F0F\uFF0C\u4E0B\u9762\u4E00\u884C\u662F\u6307\u5B9A\u5177\u4F53\u7684\u683C\u5F0F log4j.appender.Console.layout = org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n #\u6587\u4EF6\u5927\u5C0F\u5230\u8FBE\u6307\u5B9A\u5C3A\u5BF8\u7684\u65F6\u5019\u4EA7\u751F\u4E00\u4E2A\u65B0\u7684\u6587\u4EF6 log4j.appender.File = org.apache.log4j.RollingFileAppender #\u6307\u5B9A\u8F93\u51FA\u76EE\u5F55 log4j.appender.File.File = logs/ssm.log #\u5B9A\u4E49\u6587\u4EF6\u6700\u5927\u5927\u5C0F log4j.appender.File.MaxFileSize = 10MB # \u8F93\u51FA\u6240\u4EE5\u65E5\u5FD7\uFF0C\u5982\u679C\u6362\u6210DEBUG\u8868\u793A\u8F93\u51FADEBUG\u4EE5\u4E0A\u7EA7\u522B\u65E5\u5FD7 log4j.appender.File.Threshold = ALL log4j.appender.File.layout = org.apache.log4j.PatternLayout log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
5、建立spring框架配置檔案：applicationContext.xml
<!-- 掃描包，使用註解可以生成實體 --> <context:component-scan base-package="com.dream" /> <!--屬性檔案位置 --> <beanclass="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" id="annotationPropertyConfigurer"> <!-- 忽略沒有找到的資原始檔 --> <property name="ignoreResourceNotFound" value="true" /> <!-- 配置資原始檔 --> <property name="locations"> <list> <value>classpath:db.properties</value> <value>classpath:log4j.properties</value> </list> </property> </bean> <!--配置資料來源 c3p0 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property> <property name="driverClass" value="${jdbc.driverClass}"></property> <property name="user" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> </bean> <!--配置 JPA 的 EntityManagerFactory --> <bean class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" id="entityManagerFactory"> <property name="dataSource" ref="dataSource"></property> <property name="jpaVendorAdapter"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"></bean> </property> <property name="packagesToScan" value="com.dream.bean" /> <property name="jpaProperties"> <props> <!-- 生成的資料表的列的對映策略 --> <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop> <!-- hibernate 基本屬性 --> <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> </props> </property> </bean> <!--配置事務管理器 --> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean> <!--開啟事務註解支援 --> <tx:annotation-driven transaction-manager="transactionManager" /> <!--配置 SpringData,需要加入 jpa 的名稱空間 --> <!-- base-package: 掃描 Repository Bean 所在的 package --> <jpa:repositories base-package="com.dream.dao" entity-manager-factory-ref="entityManagerFactory"> </jpa:repositories>
6、建立springmvc框架配置檔案：springmvc.xml
<!-- 掃表包:控制層包 -->
<context:component-scan base-package="com.dream.controller" />
<!-- 檢視解析器 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- jsp所在的位置 -->
<property name="prefix" value="/WEB-INF/jsp/"></property>
<!-- 檔案字尾 -->
<property name="suffix" value=".jsp"></property>
</bean>
7、web.xml檔案中的配置
<!-- 新增Spring的上下文環境監聽 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- 新增Springmvc的上下文環境監聽 -->
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置DispatcherServlet的初始化引數：設定檔案的路徑和檔名稱 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<!--這是REST URL風格的要求 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 解決格式亂碼問題 -->
<filter>
<filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
8、建立實體類（註解模式）（配置了資料庫自動建立表，不需要自己建立）
@Entity
@Table(name="user")
public class User {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Integer id;
@Column
private String username;//姓名
@Column
private String password;//密碼
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User [id=" + id + ", username=" + username + ", password=" + password + "]";
}
}
9、建立dao層，繼承JpaRepository，JpaSpecificationExecutor介面
public interface IUserDAO extends JpaRepository<User, Serializable>,JpaSpecificationExecutor<User>{
@Query("from User where username=?1")
User findOneUserByUsername(String username);
}
10、建立service層（註解注入dao層物件）
@Service
@Transactional
public class UserService implements IUserService{
@Autowired
IUserDAO userDAO;
@Override
public User addUser(User u) {
if (null==u||"".equals(u.getUsername())||"".equals(u.getPassword())) {
return null;
}else {
User user = userDAO.findOneUserByUsername(u.getUsername());
if (null!=user) {
return null;
}else {
return userDAO.save(u);
}
}
}
@Override
public User findUserByUsername(User u) {
if (null==u||"".equals(u.getUsername())||"".equals(u.getPassword())) {
return null;
}else {
return userDAO.findOneUserByUsername(u.getUsername());
}
}
}
11、建立controller層（註解注入service層物件）
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
IUserService userService;
@RequestMapping("/regist")
public void regist(Model model,User user,HttpServletRequest request,HttpServletResponse response) throws Exception{
response.setContentType("text/html;charset=utf-8");
User user2 = userService.addUser(user);
if (null!=user2) {
response.getWriter().write("<script>alert('註冊成功');location.href='"+request.getContextPath()+"/page/login';</script>");
}else {
response.getWriter().write("<script>alert('註冊失敗');location.href='"+request.getServletContext().getContextPath()+"/page/regist';</script>");
}
}
@RequestMapping("/login")
public void login(Model model,User user,HttpServletRequest request,HttpServletResponse response) throws Exception{
response.setContentType("text/html;charset=utf-8");
if (null==user||"".equals(user.getUsername())||"".equals(user.getPassword())) {
response.getWriter().write("<script>alert('賬號或密碼不能為空！');location.href='"+request.getContextPath()+"/page/login';</script>");
}else {
User user2 = userService.findUserByUsername(user);
if (user.getPassword().equals(user2.getPassword())) {
response.getWriter().write("<script>alert('登陸成功');location.href='"+request.getContextPath()+"/page/index';</script>");
}else {
response.getWriter().write("<script>alert('登陸失敗');location.href='"+request.getContextPath()+"/page/login';</script>");
}
}
}
}
這裡寫一個頁面跳轉幫助類
@Controller
public class PageController {
@RequestMapping("/page/{page}")
public String skip(@PathVariable(value="page") String page){
return page;
}
}
12、建立前臺頁面
//註冊
<form action="${pageContext.request.contextPath}/user/regist"
method="post" id="registForm">
<input type="hidden" name="method" value="regist">
<div class="control-group">
<div class="controls">
<div class="input-icon left">
<i class="icon-user"></i> <input class="m-wrap placeholder-no-fix"
type="text" placeholder="帳號" id="username" name="username">
</div>
</div>
</div>
<div class="control-group">
<div class="controls">
<div class="input-icon left">
<i class="icon-lock"></i> <input class="m-wrap placeholder-no-fix"
type="password" placeholder="密碼" id="password" name="password">
</div>
</div>
</div>
<div class="relogin">
<!-- 單擊註冊 -->
<button type="submit" id="login-submit-btn" class="btn green"
style="margin-left: 20px">
註冊 <i class="m-icon-swapright m-icon-white"></i>
</button>
</div>
</form>
//登入
<form action="${pageContext.request.contextPath}/user/login"
method="post" id="loginForm">
<input type="hidden" name="method" value="login">
<div class="control-group">
<div class="controls">
<div class="input-icon left">
<i class="icon-user"></i> <input class="m-wrap placeholder-no-fix"
type="text" placeholder="帳號" id="username" name="username">
</div>
</div>
</div>
<div class="control-group">
<div class="controls">
<div class="input-icon left">
<i class="icon-lock"></i> <input class="m-wrap placeholder-no-fix"
type="password" placeholder="密碼" id="password" name="password">
</div>
</div>
</div>
<div class="relogin">
<!-- 單擊登入 -->
<button type="submit" id="login-submit-btn" class="btn green"
style="margin-left: 20px">
登陸 <i class="m-icon-swapright m-icon-white"></i>
</button>
</div>
</form>