spring 小結

時間 2019-11-21

標籤 spring 小結欄目 Spring 简体版

原文原文鏈接

第一步：配置

web.xml

<?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/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

  <display-name>ajaxchart</display-name>

  <welcome-file-list>

    <welcome-file>index.html</welcome-file>

    <welcome-file>index.htm</welcome-file>

    <welcome-file>index.jsp</welcome-file>

    <welcome-file>default.html</welcome-file>

    <welcome-file>default.htm</welcome-file>

    <welcome-file>default.jsp</welcome-file>

  </welcome-file-list>

 

  <!-- 配置配置文件路徑 -->

    <context-param>

       <param-name>contextConfigLocation</param-name>

       <param-value>

        classpath*:applicationContext.xml,

        classpath*:springcxf.xml   

     </param-value>

   </context-param>

   <!-- Spring監聽器 -->

     <listener>

       <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

     </listener>

    

    <!-- SpringMvc配置 -->

   <servlet>

       <servlet-name>springmvc</servlet-name>

       <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

       <init-param>

         <param-name>contextConfigLocation</param-name>

         <param-value>classpath:springmvc.xml</param-value>

       </init-param>

        <load-on-startup>1</load-on-startup>  <!-- 若是不指定該參數，tomcat系統時不會初始化全部的action，等到第一次訪問的時候才初始化 -->

     </servlet>

     <servlet-mapping>

       <servlet-name>springmvc</servlet-name>

       <url-pattern>*.htm</url-pattern>

     </servlet-mapping> 

    

    <!-- 配置全局的錯誤頁面 -->

    <error-page>

      <error-code>404</error-code>

      <location>/404.jsp</location>    

    </error-page>

    <error-page>

      <error-code>500</error-code>

      <location>/404.jsp</location>          

    </error-page>

</web-app>

applicationContex.xml配置

<?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:p="http://www.springframework.org/schema/p"

   xmlns:aop="http://www.springframework.org/schema/aop"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-3.1.xsd

           http://www.springframework.org/schema/tx

        http://www.springframework.org/schema/tx/spring-tx-3.1.xsd

        http://www.springframework.org/schema/aop

        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd

           http://www.springframework.org/schema/context

          http://www.springframework.org/schema/context/spring-context-3.1.xsd">

   <context:component-scan base-package="com.zf" />

   <context:annotation-config />

   <tx:annotation-driven transaction-manager="transactionManager"/>  <!-- 註解方式支持事務 (若是要讓註解方式也支持事務，就要配置該項)-->

   <aop:aspectj-autoproxy proxy-target-class="true"/>

   <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"destroy-method="close">  

       <!-- 指定鏈接數據庫的驅動 -->  

       <property name="driverClass" value="com.mysql.jdbc.Driver"/>  

       <!-- 指定鏈接數據庫的URL -->  

       <property name="jdbcUrl" value="jdbc:mysql://192.168.1.140:3306/ajax"/>  

       <!-- 指定鏈接數據庫的用戶名 -->  

       <property name="user" value="root"/>  

       <!-- 指定鏈接數據庫的密碼 -->  

       <property name="password" value="root"/>  

       <!-- 指定鏈接數據庫鏈接池的最大鏈接數 -->  

       <property name="maxPoolSize" value="20"/>  

       <!-- 指定鏈接數據庫鏈接池的最小鏈接數 -->  

       <property name="minPoolSize" value="1"/>  

       <!-- 指定鏈接數據庫鏈接池的初始化鏈接數 -->  

       <property name="initialPoolSize" value="1"/>  

       <!-- 指定鏈接數據庫鏈接池的鏈接的最大空閒時間 -->  

       <property name="maxIdleTime" value="20"/>  

    </bean>

  

   <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

        <property name="dataSource"ref="dataSource"></property>

        <property name="hibernateProperties">

           <props>

              <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>

              <prop key="hibernate.show_sql">true</prop>

              <prop key="hibernate.query.substitutions">true 1,false 0</prop>

              <prop key="hibernate.hbm2ddl.auto">update</prop>

              <prop key="hibernate.cache.use_second_level_cache">true</prop>

              <prop key="hibernate.cache.provider_class">org.hibernate.cache.OSCacheProvider</prop>

              <prop key="hibernate.cache.use_query_cache">true</prop>

           </props>

        </property>

        <property name="packagesToScan">

           <list>

              <value>com.zf.pojo</value>

           </list>

        </property>    

   </bean>

  

   <!-- 事務管理器 -->

   <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">

      <property name="sessionFactory"ref="sessionFactory"></property>

   </bean>

 

 

   <!-- XML方式配置事務 -->

   <tx:advice transaction-manager="transactionManager"id="transactionAdvice">

      <tx:attributes>

        <tx:method name="*"propagation="REQUIRED" />

      </tx:attributes>

   </tx:advice>

  

   <!-- AOP配置事務 -->

   <aop:config>   

      <aop:pointcut expression="execution(*com.zf.service.*.*(..))" id="servicePoint"/>

      <aop:advisor advice-ref="transactionAdvice"pointcut-ref="servicePoint"/>    

   </aop:config>

  

</beans>

springmvc.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:p="http://www.springframework.org/schema/p"

   xmlns:aop="http://www.springframework.org/schema/aop"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-3.1.xsd

           http://www.springframework.org/schema/tx

        http://www.springframework.org/schema/tx/spring-tx-3.1.xsd

        http://www.springframework.org/schema/aop

        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd

           http://www.springframework.org/schema/context

          http://www.springframework.org/schema/context/spring-context-3.1.xsd"> 

  

   <context:annotation-config />

   <context:component-scan base-package="com.zf.control" />

   <aop:aspectj-autoproxy proxy-target-class="true"/>     

  

  

   <!-- Freemarker配置 -->

   <bean

   class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">

      <property name="templateLoaderPath"value="/" />

      <property name="freemarkerSettings">

        <props>

           <prop key="template_update_delay">0</prop>   <!--           測試時設爲0，通常設爲3600 -->

           <prop key="defaultEncoding">utf-8</prop>

        </props>

      </property>

   </bean>

  

  

   <!-- Freemarker視圖解析器 -->

   <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">

      <property name="viewClass"

         value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>

      <property name="suffix"value=".ftl" />

      <property name="contentType"value="text/html; charset=UTF-8" />

      <property name="allowSessionOverride"value="true" />

 

   </bean>

  

      <!-- View Resolver (若是用Freemarker就能夠將該視圖解析器去掉) -->       

<!--     <bean id="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver">   -->

<!--         <property name="viewClass"value="org.springframework.web.servlet.view.JstlView" />   -->

<!--         <property name="prefix"value="/" />  指定Control返回的View所在的路徑   -->

<!--         <property name="suffix"value=".jsp" />   指定Control返回的ViewName默認文件類型    -->

<!--     </bean>  -->

    

    <!-- 將OpenSessionInView打開 -->

    <bean id="openSessionInView" class="org.springframework.orm.hibernate3.support.OpenSessionInViewInterceptor">

      <property name="sessionFactory" ref="sessionFactory"></property>

    </bean>

    

   <!-- 處理在類級別上的@RequestMapping註解--> 

    <bean  class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"> 

      <property name="interceptors">    <!-- 配置過濾器 -->

         <list>

            <ref bean="openSessionInView" />

         </list>

      </property>

    </bean>

 

      

   

    <!--JSON配置-->    

    <bean 

       class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> 

        <property name="messageConverters">   

            <list>

              <!-- 該類只有org.springframework.web-3.1.2.RELEASE.jar及以上版本纔有  使用該配置後，才能夠使用JSON相關的一些註解-->

                <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

                    <property name="objectMapper">

                 <bean class="com.fasterxml.jackson.databind.ObjectMapper"/>

              </property>

                </bean>

            </list>

        </property>

    </bean> 

</beans>

oscache.properties

cache.memory=true

cache.key=__oscache_cache

cache.capacity=10000

cache.unlimited.disk=true

若是有些類在轉換爲JSON時，須要對其屬性作一些格式那要用JSONjackson-annotations-.jar提供的一些註解以下：

@JsonSerialize(using = DateJsonSerelized.class) //表示該字段轉換爲json時，用DateJsonSerelized類進行轉換格式

   @Temporal(TemporalType.DATE)

   @Column(name = "date")  

   private Date date ;

  

   @JsonIgnore   //表示轉換成JSON對象時忽略該字段           

   @OneToMany(mappedBy = "media" , fetch = FetchType.LAZY )

   private List<Plane> planes ;

DateJsonSerelized類的定義以下：

package com.zf.common;

import java.io.IOException;

import java.text.SimpleDateFormat;

import java.util.Date;

import com.fasterxml.jackson.core.JsonGenerator;

import com.fasterxml.jackson.core.JsonProcessingException;

import com.fasterxml.jackson.databind.JsonSerializer;

import com.fasterxml.jackson.databind.SerializerProvider;

public class DateJsonSerelized extends JsonSerializer<Date>{

   private SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");

   @Override

   public void serialize(Date value, JsonGenerator jgen,SerializerProvider sp)

        throws IOException, JsonProcessingException {

      jgen.writeString(sdf.format(value));

   }

}

Spring 監聽器

package com.zf.common;

import javax.annotation.Resource;

import org.springframework.context.ApplicationEvent;

import org.springframework.context.ApplicationListener;

import org.springframework.stereotype.Component;

 

import com.zf.service.MediaService;

 

/**

 * SpringMVC 監聽器    在啓動容器的時候會隨着啓動

 * @author zhoufeng

 *

 */

@Component

public class StartUpHandler implementsApplicationListener<ApplicationEvent>{

 

   @Resource(name = "MediaService")

   private MediaService mediaService ;

  

   @Override

   public void onApplicationEvent(ApplicationEvent event) {

      //將數據所有查詢出來，放入緩存

      mediaService.queryAll();

   }

}

Spring類型轉換器

package com.zf.common;

import java.beans.PropertyEditorSupport;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import org.springframework.stereotype.Component; 

/**

 * 自定義Date類型的類型轉換器

 * @author zhoufeng

 *

 */

@Component("DateEdite")

public class DateEdite extends PropertyEditorSupport{

   private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

   @Override

   public String getAsText() {

      return getValue() == null ? "" : sdf.format(getValue());

   }

   @Override

   public void setAsText(String text) throws IllegalArgumentException {

      if(text == null || !text.matches("^\\d{4}-\\d{2}-\\d{2}$"))

        setValue(null);

      else

        try {

           setValue(sdf.parse(text));

        } catch (ParseException e) {

           setValue(null);    

        }  

   }

}

而後在須要轉換的Controller裏面註冊該類型轉換器就能夠了

   /**

    * 類型轉換器

    * @param binder

    */

   @InitBinder        

   public void initBinder(WebDataBinder binder){

      binder.registerCustomEditor(Date.class, dateEdite);  

   }

Freemarker訪問靜態方法和屬性

/**

    * Access static Method FTL訪問靜態方法和屬性（能夠將該方法提取出來，讓全部的Controller繼承，避免每一個類中都要寫一個該方法）

    * @param packname

    * @return

    * @throwsTemplateModelException

    */

   private final static BeansWrapper wrapper = BeansWrapper.getDefaultInstance();

   private final static TemplateHashModel staticModels = wrapper.getStaticModels();

   protected TemplateHashModel useStaticPacker(Class<?> clazz){

 

      try {

        return (TemplateHashModel) staticModels.get(clazz.getName());

      } catch (TemplateModelException e) {

        throw new RuntimeException(e);

      }

   };

而後在Action方法中加入下面的代碼：

 mav.getModelMap().put("MediaService", useStaticPacker(MediaService.class));     //容許Freemarker訪問MediaService類的靜態方法

轉：spring 總結 html

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