Maven02——回顾整合ssh框架分模块开发私服

Posted 2020-10-21 kent

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1 回顾

1.1 Maven的好处

节省空间对jar包做了统一管理依赖管理

一键构建

可跨平台

应用在大型项目可提高开发效率

1.2 Maven安装部署配置

1.3 Maven的仓库

本地仓库

远程仓库（私服）

中央仓库

1.4 添加依赖

从网络上搜索：

http://search.maven.org/

http://mvnrepository.com/（推荐）

在本地重建索引，以索引的方式搜索

1.5 项目构建

1.6 依赖范围

Compile struts2 框架jar

Provided jsp-api.jar 重点（因为他会和tomcat的包相冲突）

Runtime 数据库驱动包

Test junit.jar

1.7 总结

坐标 GAV

<groupId>cn.itcast</groupId>

<version>0.0.1-SNAPSHOT</version>

Packaging 打包方式

Jar war pom

<build> 里面放的是插件

2 整合ssh框架

2.1 依赖传递

只添加了一个struts2-core依赖，发现项目中出现了很多jar，

这种情况叫依赖传递

2.2 依赖版本冲突的解决

1、第一声明优先原则

<dependencies>

  <!--   spring-beans-4.2.4 -->

   <dependency>

   <groupId>org.springframework</groupId>

   <artifactId>spring-context</artifactId>

   <version>4.2.4.RELEASE</version>

   </dependency>

  

  

<!--   spring-beans-3.0.5 -->

   <dependency>

   <groupId>org.apache.struts</groupId>

   <artifactId>struts2-spring-plugin</artifactId>

   <version>2.3.24</version>

   </dependency>

2、路径近者优先原则

自己添加jar包

<dependency>

   <groupId>org.springframework</groupId>

   <artifactId>spring-beans</artifactId>

   <version>4.2.4.RELEASE</version>

</dependency>

3、排除原则

   <dependency>

   <groupId>org.apache.struts</groupId>

   <artifactId>struts2-spring-plugin</artifactId>

   <version>2.3.24</version>

   <exclusions>

     <exclusion>

       <groupId>org.springframework</groupId>

       <artifactId>spring-beans</artifactId>

     </exclusion>

   </exclusions>

   </dependency>

4、版本锁定原则

<properties>

<spring.version>4.2.4.RELEASE</spring.version>

<hibernate.version>5.0.7.Final</hibernate.version>

<struts.version>2.3.24</struts.version>

</properties>

 

<!-- 锁定版本，struts2-2.3.24、spring4.2.4、hibernate5.0.7 -->

<dependencyManagement>

<dependencies>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context</artifactId>

<version>${spring.version}</version>

</dependency>

</dependencies>

</dependencyManagement>

需求：

传客户ID 页面上显示客户信息

准备数据库

2.3 构建项目

1、创建数据库，

2、执行准备好的sql脚本

Sql脚本的位置：

3、完善pom.xml文件，把ssh相关的依赖都添加上去

 <!-- 属性 -->

<properties>

<spring.version>4.2.4.RELEASE</spring.version>

<hibernate.version>5.0.7.Final</hibernate.version>

<struts.version>2.3.24</struts.version>

</properties>

 

<!-- 锁定版本，struts2-2.3.24、spring4.2.4、hibernate5.0.7 -->

<dependencyManagement>

<dependencies>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-aspects</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>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-web</artifactId>

<version>${spring.version}</version>

</dependency>

<dependency>

<groupId>org.hibernate</groupId>

<artifactId>hibernate-core</artifactId>

<version>${hibernate.version}</version>

</dependency>

<dependency>

<groupId>org.apache.struts</groupId>

<artifactId>struts2-core</artifactId>

<version>${struts.version}</version>

</dependency>

<dependency>

<groupId>org.apache.struts</groupId>

<artifactId>struts2-spring-plugin</artifactId>

<version>${struts.version}</version>

</dependency>

</dependencies>

</dependencyManagement>

<!-- 依赖管理 -->

<dependencies>

<!-- spring -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context</artifactId>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-aspects</artifactId>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-orm</artifactId>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-test</artifactId>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-web</artifactId>

</dependency>

<!-- hibernate -->

<dependency>

<groupId>org.hibernate</groupId>

<artifactId>hibernate-core</artifactId>

</dependency>

 

<!-- 数据库驱动 -->

<dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

<version>5.1.6</version>

<scope>runtime</scope>

</dependency>

<!-- c3p0 -->

 

<dependency>

<groupId>c3p0</groupId>

<artifactId>c3p0</artifactId>

<version>0.9.1.2</version>

</dependency>

 

 

<!-- 导入 struts2 -->

<dependency>

<groupId>org.apache.struts</groupId>

<artifactId>struts2-core</artifactId>

</dependency>

<dependency>

<groupId>org.apache.struts</groupId>

<artifactId>struts2-spring-plugin</artifactId>

</dependency>

 

<!-- servlet jsp -->

<dependency>

<groupId>javax.servlet</groupId>

<artifactId>servlet-api</artifactId>

<version>2.5</version>

<scope>provided</scope>

</dependency>

<dependency>

<groupId>javax.servlet</groupId>

<artifactId>jsp-api</artifactId>

<version>2.0</version>

<scope>provided</scope>

</dependency>

<!-- 日志 -->

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-log4j12</artifactId>

<version>1.7.2</version>

</dependency>

<!-- junit -->

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>4.9</version>

<scope>test</scope>

</dependency>

<!-- jstl -->

<dependency>

<groupId>javax.servlet</groupId>

<artifactId>jstl</artifactId>

<version>1.2</version>

</dependency>

</dependencies>

 

<build>

<plugins>

<!-- 设置编译版本为1.7 -->

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

<configuration>

<source>1.7</source>

<target>1.7</target>

<encoding>UTF-8</encoding>

</configuration>

</plugin>

 

<!-- maven内置 的tomcat6插件 -->

<plugin>

<groupId>org.codehaus.mojo</groupId>

<artifactId>tomcat-maven-plugin</artifactId>

<version>1.1</version>

<configuration>

<!-- 可以灵活配置工程路径 -->

<path>/ssh</path>

<!-- 可以灵活配置端口号 -->

<port>8080</port>

</configuration>

</plugin>

</plugins>

</build>

4、完成实体类代码

public class Customer {

private Long custId;

private String custName;

private Long custUserId;

private Long custCreateId;

private String custIndustry;

private String custLevel;

private String custLinkman;

private String custPhone;

private String custMobile;

public Long getCustId() {

return custId;

}

..省略get set方法

5、完成dao代码

接口

package cn.itcast.dao;

 

import cn.itcast.entity.Customer;

 

public interface CustomerDao {

 

public Customer getById(Long id);

 

}

实现类

package com.itcast.dao.impl;

import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import cn.itcast.dao.CustomerDao;

import cn.itcast.entity.Customer;

public class CustomerDaoImpl extends HibernateDaoSupport implements CustomerDao {

@Override

public Customer getById(Long id) {

return this.getHibernateTemplate().get(Customer.class, id);

}

}

配置好spring，添加customer的bean注入sessionFactory，然后右键java文件进行junit测试

6、完成service代码

接口

package com.itcast.service;

import cn.itcast.entity.Customer;

public interface CustomerService {

public Customer getById(Long id);

}

 

实现类

package com.itcast.service.impl;

 

import com.itcast.service.CustomerService;

 

import cn.itcast.dao.CustomerDao;

import cn.itcast.entity.Customer;

 

public class CustomerServiceImpl implements CustomerService {

private CustomerDao  customerDao;

public void setCustomerDao(CustomerDao customerDao) {

this.customerDao = customerDao;

}

@Override

public Customer getById(Long id) {

return customerDao.getById(id);

}

}

7、完成action代码

package cn.itcast.action;

import com.itcast.service.CustomerService;

import com.opensymphony.xwork2.ActionSupport;

import cn.itcast.entity.Customer;

public class CutomerAction extends ActionSupport {

//两个成员变量

private Customer  customer;

 

private Long custId;

public Customer getCustomer() {

return customer;

}

public void setCustomer(Customer customer) {

this.customer = customer;

}

private CustomerService customerService;

public void setCustomerService(CustomerService customerService) {

this.customerService = customerService;

}

public Long getCustId() {

return custId;

}

public void setCustId(Long custId) {

this.custId = custId;

}

public String findById(){

customer = customerService.getById(custId);

return SUCCESS;

}

}

8、拷贝配置文件并修改

从如下图位置拿到配置文件

放入到 src/main/resources目录中

修改内容略

9、修改web.xml 以上是关于Maven02——回顾整合ssh框架分模块开发私服的主要内容，如果未能解决你的问题，请参考以下文章

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