Idea项目--以SpringBoot创建ssm工程

╰半夏微凉° 2023-07-02 03:16 35阅读 0赞

原文网址：[Idea项目--以SpringBoot创建ssm工程\_IT利刃出鞘的博客-CSDN博客\_springboot新建ssm项目][Idea_--_SpringBoot_ssm_IT_-CSDN_springboot_ssm]

# 其他网址 #

参考链接：  
[搭建springboot的ssm的maven项目][springboot_ssm_maven]  
[IDEA下用SpringBoot搭建SSM框架项目,支持JSP页面（图文步骤）][IDEA_SpringBoot_SSM_JSP]

# 初建工程 #

**1. File=> New=> Project**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70][]

**2. 项目类型、包名称等**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70 1][]

Group：pom.xml的<groupId> xxx </groupId>标签  
Artifact：pom.xml的<artifactId> xxx </artifactId>标签  
Type：maven。（选择grable差别也不大）  
name：  
1. pom.xml的<name> xxx </name>标签  
2. 作为spring的启动类的前缀。本处对应：src\\main\\java\\SsmShopApplication.java  
3. maven的名字  
Package：会作为工程的src\\main\\java\\下的源码路径

**3.选择依赖**

本处Spring Web一般是必选的，因为用它生成启动等。其他如果本处不选，则需要手动修改pom.xml文件。

版本问题：对于比较老的Springboot版本，Web：选择Web，SQL：选Mybatis和MySQL

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70 2][]

**4.Idea项目名和位置**

![20200124162343935.png][]

**5.创建后的结构**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70 3][]

# 创建相关包（非必须） #

创建以下包：

**controller**  
类。常用注释：@Controller、@RestController

**dao**  
接口。常用注释：@Mapper （mybatis的注释）。  
对应mapper包。

**mapper**  
xml文件。常用标签：<mapper namespace="**xxx**"> </mapper>  
对应dao和pojo包。

1.**xxx**必须对应dao包下的名字空间。例如：com\\example\\sale\\dao下有ProductDao.java文件，文件内容为：  
@Mapper  
public interface ProductDao \{ ....... \}  
则xxx必须为：com.example.sale.dao.ProductDao

2.application.yml配置  
mybatis:  
mapper-locations: classpath:com/example/sale/mapper/\*.xml  
type-aliases-package: com.example.sale.pojo

**pojo**  
类。常用注解：@Alias("xxx")。需实现Serializable  
对应mapper包。

**service**  
接口，类。常用注解：@Service。类需实现本包的接口

**task**（不必需）  
接口，类。常用注解：@Service。类需实现本包的接口

# **配置web（非必须）** #

对于web项目，一般会有一个路径用于前端的显示和配置，例如：jsp，web.xml等。  
这个路径一般是：src\\main\\webapp\\WEB-INF

步骤如下：

（1）src\\main\\下创建webapp目录、

（2）添加web模块  
File=> Project Structure=> Project Settings=> Modules=> 点开项目名=> Web=>  
Deployment Descriptors：点右侧加号把路径改为：项目路径\\src\\main\\webapp\\WEB-INF\\web.xml  
（默认路径是项目路径\\WEB-INF\\web.xml）  
Web Resource Directories：点右侧加号把路径改为：  
Web Resouce Directory：项目路径\\src\\main\\webapp\\  
Path Relative to Deployment Root：/  
=>Apply => OK

创建之后会自动生成文件：项目路径\\src\\main\\webapp\\WEB-INF\\web.xml

**配置web.xml**

如果用到了web.xml，一般要修改此处：在项目中的web.xml文件的</web-app>标签内添加此标签：<absolute-ordering />  
否则会报错：**“More than one fragment with the name \[spring\_web\] was found”**

例：

<web-app>  
...  
<servlet-mapping>  
<servlet-name>chapter2</servlet-name>  
<url-pattern>/</url-pattern>  
</servlet-mapping>  
 **<absolute-ordering />**  
</web-app>

# 配置pom.xml #

详见：[maven使用\_maven\_feiying0canglang的博客-CSDN博客][maven_maven_feiying0canglang_-CSDN]

**mybatis相关**

Idea默认不会编译src\\main\\java下的xml文件  
解决方法：在pom.xml中配置xml资源路径

**详细示例**

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.2.4.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.example</groupId>
        <artifactId>sale</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>sale</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>2.1.1</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-redis</artifactId>
                <exclusions>
                    
                    <exclusion>
                        <groupId>io.lettuce</groupId>
                        <artifactId>lettuce-core</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.apache.tomcat.embed</groupId>
                <artifactId>tomcat-embed-jasper</artifactId>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <groupId>org.junit.vintage</groupId>
                        <artifactId>junit-vintage-engine</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
        </dependencies>
    
        <build>
            <resources>
                <resource>
                    <directory>src/main/java</directory>
                    <includes>
                        <include>**/*.xml</include>
                    </includes>
                </resource>
            </resources>
    
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

# **最终结构** #

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70 4][]

# 配置文件 #

路径：src\\main\\resources  
常用文件：application.properties或application.yml

[Idea_--_SpringBoot_ssm_IT_-CSDN_springboot_ssm]: https://knife.blog.csdn.net/article/details/104080323
[springboot_ssm_maven]: https://www.cnblogs.com/chenlove/p/9193052.html
[IDEA_SpringBoot_SSM_JSP]: https://blog.csdn.net/liudun_cool/article/details/81780686
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200124153309158.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc=,size_16,color_FFFFFF,t_70
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200124161803665.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc=,size_16,color_FFFFFF,t_70
[20200124162343935.png]: https://img-blog.csdnimg.cn/20200124162343935.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200124162440870.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc=,size_16,color_FFFFFF,t_70
[maven_maven_feiying0canglang_-CSDN]: https://blog.csdn.net/feiying0canglang/article/details/104044779
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/20200204213658227.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaXlpbmcwY2FuZ2xhbmc=,size_16,color_FFFFFF,t_70