使用Maven搭建SpringMVC项目

参考文档

标题：超详细使用Maven 搭建 Spring MVC 本地部署Tomcat 实现 HelloWorld Spring MVC笔记 

链接：https://www.jianshu.com/p/a6fd2a37104c 

spring常见配置

使用Maven搭建SpringMVC项目 

 

注意：

1.配置tomcat问题  https://www.cnblogs.com/l199616j/p/11430615.html

2.tomcat端口被占用问题 https://blog.csdn.net/hyt182380/article/details/103394377

3.返回json  https://www.cnblogs.com/zhanglijun/p/9104706.html

4. spring-servlet.xml中创建注解映射器 创建注解适配器的两种方法

<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:context="http://www.springframework.org/schema/context"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/mvc 
           http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.2.xsd">

<mvc:annotation-driven>
    <mvc:message-converters>
        <bean class="org.springframework.http.converter.StringHttpMessageConverter">
            <property name="supportedMediaTypes">
                <list>
                    <value>text/plain;charset=UTF-8</value>
                    <value>text/html;charset=UTF-8</value>
                </list>
            </property>
        </bean>
        <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">  
            <property name="objectMapper">  
                <bean class="com.fasterxml.jackson.databind.ObjectMapper">  
                    <property name="dateFormat">  
                        <bean class="java.text.SimpleDateFormat">  
                            <constructor-arg type="java.lang.String" value="yyyy-MM-dd HH:mm:ss" />  
                        </bean>  
                    </property>  
                </bean>  
            </property>  
        </bean>  
    </mvc:message-converters>
</mvc:annotation-driven>
    
    
    
    
<!-- 创建注解映射器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
<!-- 创建注解适配器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
    <!-- 配置json格式支持 -->
    <property name="messageConverters">
        <list>
           <bean class="org.springframework.http.converter.StringHttpMessageConverter">
             <property name="supportedMediaTypes">
                 <list>
                     <value>text/plain;charset=UTF-8</value>
                     <value>text/html;charset=UTF-8</value>
                 </list>
             </property>
           </bean>
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">  
               <property name="objectMapper">  
                   <bean class="com.fasterxml.jackson.databind.ObjectMapper">  
                       <property name="dateFormat">  
                           <bean class="java.text.SimpleDateFormat">  
                               <constructor-arg type="java.lang.String" value="yyyy-MM-dd HH:mm:ss" />  
                           </bean>  
                       </property>  
                   </bean>  
               </property>  
           </bean> 
        </list>
    </property>
</bean>       

5. 添加properties文件

其他方式比较繁琐，可参考：SpringMVC加载配置Properties文件的几种方式

（1）在spring-mvc.xml加入：
xmlns:util="http://www.springframework.org/schema/util"
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.0.xsd

<util:properties id="applicationProps" location="classpath:conf/config_development.properties"/>
（2）在controller中加入：
@Autowired
private Properties applicationProps;

public Properties getApplicationProps() {
return applicationProps;
}

（3）.在controller中利用applicationProps读取配置文件
String jumpUrl = applicationProps.getProperty("learn.jump.url");

6. 读取 properties文件和xml文件，

1) 可以使用java.util.Properties，够强大

      Properties prop = new Properties();
      FileInputStream fis = new FileInputStream("sampleprops.xml");
      prop.loadFromXML(fis);
      或 prop = PropertiesLoaderUtils.loadAllProperties("sampleprops.xml");

 2) 纯文本读取 可参考：java中yml、properties配置文件读取方式

7. bean的xml格式

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" 
   destroy-method="close" >  
   <property name="driverClassName">  
     <value>${jdbc.driverClassName}</value>  
   </property>  
   <property name="url">  
     <value>${jdbc.url}</value>  
   </property>  
   <property name="username">  
     <value>${jdbc.username}</value>  
   </property>  
   <property name="password">  
     <value>${jdbc.password}</value>  
   </property>  
</bean>

也可以

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

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
           destroy-method="close"   
           p:driverClassName="${jbdc.driverClassName}"
           p:url="${jdbc.url}"
         p:username="${jbdc.username}"
        p:password="${jbdc.password}"
   />