【小白第一篇】maven搭建ssm專案
第一遍部落格,記錄在學習IT路上的的一些總結
工具:eclipse,jdk1.8
雖然maven作為Java構建工具和Gradle比已經要涼了,但作為剛入行的可以瞭解一下
第一步
建一個maven專案,在這裡我用的是maven3.5.3,下圖
settings.xml用的阿里倉庫
<mirror>
<!--id, name是該映象的唯一定義符。id用來區分不同的mirror元素。 -->
<id>aliyun</id>
<name>aliyun maven</name>
<!--url是該映象的URL。構建系統會優先考慮使用該URL,而非使用預設的伺服器URL。 -->
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<!--<mirrorOf>的值為星號,表示該配置是匹配所有遠端倉庫。 -->
<mirrorOf>*</mirrorOf>
</mirror>
maven的下載,配置,eclipse外掛就不說了,百度有的是
然後開始建專案
(具體怎麼搭建,每一個幹什麼,百度上已經有很多大佬分享了)
因為建立的simple project,packaging是war包,報了個錯
加一個這個就好了
再把這個修改一下我用的1.8
第二步
分包
搭建環境,首先是pom.xml裡,引入各種jar包,外掛
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com</groupId>
<artifactId>maven_ssm_test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- spring 相關jar -->
<!-- Spring 4.3.3 -->
<!-- Core Container 核心容器 -->
<!-- 核心工具類,Spring其它模組大量使用Spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 執行時Spring容器 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- Spring容器對第三方包的整合 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.3.3.RELEASE</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<!-- Spring定義Bean的支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 使用表示式語言在執行時查詢和操作物件 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- End Core Container 核心容器 -->
<!-- AOP -->
<!-- 基於代理的AOP支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 基於AspectJ的AOP支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- aspectj -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.5</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.5</version>
</dependency>
<!-- End AOP -->
<!-- web -->
<!-- 提供基礎的web整合的功能,在web專案中提供Spring容器 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供基於Servlet的SpringMVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供WebSocket功能 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-websocket</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供Portlet環境支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc-portlet</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- json -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-lgpl</artifactId>
<version>1.9.6</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.4</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.5</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-lgpl</artifactId>
<version>1.9.6</version>
</dependency>
<!-- End web -->
<!-- DataAccess/Integration 資料訪問/整合 -->
<!-- 提供以JDBC訪問資料庫的支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供程式設計式和宣告式的事務支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供對 物件/關係對映技術的支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- 提供對JMS的支援 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<!-- End DataAccess/Integration 資料訪問/整合 -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- End Spring 4.0 -->
<!-- mybatis jar -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
<type>jar</type>
</dependency>
<!-- 列印日誌 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.22</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.22</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- jsp jar -->
<!-- JSP相關 -->
<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>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.tld</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.tld</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- tomcat7 外掛-->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<port>8080</port>
<uriEncoding>UTF-8</uriEncoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
框架的配置檔案
applicationContext-dao.xml 裡
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 資料庫連線池 :dataSource -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="com.mysql.jdbc.Driver" />
<property name="jdbcUrl"
value="jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8" />
<property name="user" value="root" />
<property name="password" value="root" />
<property name="minPoolSize" value="1" />
<property name="maxPoolSize" value="20" />
<property name="maxIdleTime" value="1800" />
<property name="acquireIncrement" value="2" />
<property name="maxStatements" value="0" />
<property name="initialPoolSize" value="2" />
<property name="idleConnectionTestPeriod" value="1800" />
<property name="acquireRetryAttempts" value="30" />
<property name="breakAfterAcquireFailure" value="true" />
<property name="testConnectionOnCheckout" value="false" />
</bean>
<!-- 定義Mybatis的SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 定義資料來源 -->
<property name="dataSource" ref="dataSource" />
<!-- 指定mybatis全域性配置檔案 -->
<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"/>
<property name="mapperLocations" value="classpath:com/maven_ssm_test/mapper/*.xml" />
<!-- 別名掃描包 -->
<property name="typeAliasesPackage" value="com.maven_ssm_test.enity"/>
</bean>
<!-- 配置自動生成介面的實現類 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactory" ref="sqlSessionFactory"/>
<property name="basePackage" value="com.maven_ssm_test.mapper"/>
</bean>
</beans>
applicationContext-service.xml 裡
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 註解開發-->
<context:annotation-config/>
<!-- 批量掃描service類所在的包 -->
<context:component-scan base-package="com.maven_ssm_test.service"/>
</beans>
applicationContext-transaction.xml 裡<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" 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:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- (事務管理)transaction manager-->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置事務特性 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="insert*" rollback-for="java.lang.Exception"/>
<tx:method name="update*" rollback-for="java.lang.Exception"/>
<tx:method name="delete*" rollback-for="java.lang.Exception"/>
<tx:method name="add*" rollback-for="java.lang.Exception"/>
<tx:method name="select*" read-only="true"/>
<tx:method name="find*" read-only="true" />
<tx:method name="get*" read-only="true" />
<tx:method name="query*" read-only="true" />
</tx:attributes>
</tx:advice>
<!-- 宣告式事務-->
<aop:config>
<!-- 配置事務的切入點 -->
<aop:pointcut id="targetMethod" expression="execution(* com.maven_ssm_test.service.*.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="targetMethod" />
</aop:config>
</beans>
springmvc.xml 裡
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 註解方式 -->
<mvc:annotation-driven/>
<context:component-scan base-package="com.maven_ssm_test.controller"/>
<!-- 對模型檢視名稱的解析,即在模型檢視名稱新增前字尾 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/jsp/" />
<property name="suffix" value=".jsp" /><!--可為空,方便實現自已的依據副檔名來選擇檢視解釋類的邏輯 -->
</bean>
</beans>
SqlMapConfig.xml,註釋的根據自己需要
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 全域性引數 -->
<settings>
<setting name="autoMappingBehavior" value="FULL"/>
</settings>
<!-- <settings>
使全域性的對映器啟用或禁用快取。
<setting name="cacheEnabled" value="true"/>
全域性啟用或禁用延遲載入。當禁用時,所有關聯物件都會即時載入。
<setting name="lazyLoadingEnabled" value="true"/>
當啟用時,有延遲載入屬性的物件在被呼叫時將會完全載入任意屬性。否則,每種屬性將會按需要載入。
<setting name="aggressiveLazyLoading" value="false"/>
是否允許單條sql 返回多個資料集 (取決於驅動的相容性) default:true
<setting name="multipleResultSetsEnabled" value="true"/>
是否可以使用列的別名 (取決於驅動的相容性) default:true
<setting name="useColumnLabel" value="true"/>
允許JDBC 生成主鍵。需要驅動器支援。如果設為了true,這個設定將強制使用被生成的主鍵,有一些驅動器不相容不過仍然可以執行。 default:false
<setting name="useGeneratedKeys" value="false"/>
指定 MyBatis 如何自動對映 資料基表的列 NONE:不隱射 PARTIAL:部分 FULL:全部
<setting name="autoMappingBehavior" value="PARTIAL"/>
這是預設的執行型別 (SIMPLE: 簡單; REUSE: 執行器可能重複使用prepared statements語句;BATCH: 執行器可以重複執行語句和批量更新)
<setting name="defaultExecutorType" value="SIMPLE"/>
使用駝峰命名法轉換欄位。
<setting name="mapUnderscoreToCamelCase" value="true"/>
設定本地快取範圍 session:就會有資料的共享 statement:語句範圍 (這樣就不會有資料的共享 ) defalut:session
<setting name="localCacheScope" value="SESSION"/>
設定但JDBC型別為空時,某些驅動程式 要指定值,default:OTHER,插入空值時不需要指定型別
<setting name="jdbcTypeForNull" value="NULL"/>
</settings> -->
</configuration>
log4j.properties 日誌
# Global logging configuration
#\u751F\u4EA7\u73AF\u5883\u914D\u7F6Einfo ERROR
log4j.rootLogger=DEBUG,stdout
# MyBatis logging configuration...
log4j.logger.org.mybatis.example.BlogMapper=TRACE
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
第三步
測試一下,下面類的位置
User.java
package com.maven_ssm_test.enity; /** * User實體類 */ public class User { private Integer userid; private String username; public Integer getUserid() { return userid; } public void setUserid(Integer userid) { this.userid = userid; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } @Override public String toString() { return "User [userid=" + userid + ", username=" + username + "]"; } }
UserMapper.java
package com.maven_ssm_test.mapper;
import java.util.List;
import com.maven_ssm_test.enity.User;
/**
* usermapper介面
*/
public interface UserMapper {
// 查所有
public List<User> selectAll();
}
UserMapper.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 對映檔案的namespace屬性需要配置對應介面的全類名 -->
<mapper namespace="com.maven_ssm_test.mapper.UserMapper">
<!-- id屬性要與介面的方法名一致 -->
<!-- parameterType屬性要和方法的形參一致 包名在sqlMapConfig配好 類名就行-->
<!-- resuletType屬性要和方法返回值型別一致 -->
<!-- 查所有 -->
<select id="selectAll" resultType="user">
select * from user
</select>
</mapper>
UserService.java
package com.maven_ssm_test.service;
import java.util.List;
import com.maven_ssm_test.enity.User;
/**
* user業務層
*/
public interface UserService {
// 查所有
public List<User> selectAll();
}
UserServiceImpl.java
package com.maven_ssm_test.service.impl;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.maven_ssm_test.enity.User;
import com.maven_ssm_test.mapper.UserMapper;
import com.maven_ssm_test.service.UserService;
/**
* user業務層實現類
*/
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
public List<User> selectAll() {
return userMapper.selectAll();
}
}
UserController.java
package com.maven_ssm_test.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.maven_ssm_test.enity.User;
import com.maven_ssm_test.service.UserService;
/**
* user控制層
*/
@Controller
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("/selectAll")
public ModelAndView selectAllUser(ModelAndView mv){
System.out.println(userService.selectAll());
mv.setViewName("success");
return mv;
}
}
資料庫
然後啟動,專案右鍵run as ——》Maven build ——》輸入 tomcat7:run 啟動
OK !!
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