**
新建一个maven Project**
包名 项目名 打包方式
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引入pom.xml**
4.0.0 com.fh hsl_friend 0.0.1-SNAPSHOT war org.springframework spring-core ${spring.version} org.springframework spring-context ${spring.version} org.springframework spring-web ${spring.version} org.springframework spring-webmvc ${spring.version} <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- SpringAOP需要依赖这个jar包 -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.13</version>
</dependency>
<!-- 引入servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<!-- SpringMVC文件上传时依赖这个jar包 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.4</version>
</dependency>
<!-- 引入Jackson相关依赖 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.8.1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.1</version>
</dependency>
<!-- 引入jstl包 -->
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
<exclusions>
<exclusion>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!-- spring-data-jpa -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.9.0.RELEASE</version>
</dependency>
<!-- hibernate 配置 4.3.11.Final -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<!-- mysql数据库的驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
</dependency>
<!-- c3p0数据库连接池 -->
<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!-- java单元测试框架 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!-- spring 与Junit整合相关依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- apache工具包 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.7</version>
</dependency>
<!-- md5 加密相关依赖 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.17</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.17</version>
</dependency>
<!-- 发送邮件 -->
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
<!-- 下载压缩附件 -->
<dependency>
<groupId>org.apache.ant</groupId>
<artifactId>ant</artifactId>
<version>1.9.7</version>
</dependency>
引入web.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!--配置Spring的监听-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置SpringMVC的核心控制器 拦截所有请求 -->
<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>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置编码过滤器,作用:防止中文乱码 -->
<filter>
<filter-name>abc</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>abc</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置验证码相关servlet -->
<!-- <servlet>
<servlet-name>CheckCodeServlet</servlet-name>
<servlet-class>com.fh.servlet.CheckCodeServlet</servlet-class>
</servlet> -->
<!-- <servlet-mapping>
<servlet-name>CheckCodeServlet</servlet-name>
<url-pattern>/CheckCodeServlet</url-pattern>
</servlet-mapping> -->
引入js 和bootstrap插件
前端框架不起作用的原因
1.静态资源没放开
2.没引入下面两个插件，或者放错位置
引入applicationContext.xml 和springMVC.xml
model类
引入datatablepagebean和 datetableresult用来 分页
@Entity 代表 实体类
@Table(name=“Friend”) 与数据库表名对应
@Id 代表 id
@GeneratedValue(strategy = GenerationType.AUTO) 代表 自增
private Integer id;
//传入：前端修改信息时传入参数param createDate=“1992-01-02 12:15:22”
@DateTimeFormat(pattern = “yyyy-MM-dd HH:mm:ss”)
//返回：把时间戳（156456465654）格式化为1992-01-02 12:15:22
@JsonFormat(pattern=“yyyy-MM-dd HH:mm:ss”,timezone=“GMT+8”)
在多的一方 私有化 一的一方
@ManyToOne 代表多对一
private Area area;
repository层
## 在controller层
@controller 代表 是控制层
@requestmapping 是路径的映射(代表URL请求controller之间的映射)
@Autowired 是一个注释，它可以对类成员变量、方法及构造函数进行标注，让 spring 完成 bean 自动装配的工作。
@Autowired 默认是按照类去匹配，配合 @Qualifier 指定按照名称去装配 bean。
在controller 中 私有化 Service 接口
service层
@service 代表是service层
私有化 repository层的 接口
标题jsp页面
在controller层 通过@requestmapping 映射到jsp
在这里插入代码片
在jsp页面引入相关的资源
