项目工程结构
配置项目
创建目录结构
创建数据库表：省略
配置9个tomcat
idea优化
- 找到idea安装目录,我的是在D:\Program Files\JetBrains\IntelliJ IDEA 2017.3.2\bin目录中
- 找到idea64.exe.vmoptions文件
- 更改配置
-Xms512m
-Xmx1024m
-XX:ReservedCodeCacheSize=300m
-XX:SoftRefLRUPolicyMSPerMB=100
tomcat优化
给tomcat的内存越大，速度越快；内存越小，每次能够启动的tomcat越多
给每一个tomcat添加配置
-Xms128m -Xmx128m -XX:PermSize=64m -XX:MaxPermSize=128m
配置项目
一、父项目版本锁定
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<junit.version>4.12</junit.version>
<spring.version>4.2.4.RELEASE</spring.version>
<pagehelper.version>4.0.0</pagehelper.version>
<servlet-api.version>2.5</servlet-api.version>
<dubbo.version>2.8.4</dubbo.version>
<zookeeper.version>3.4.7</zookeeper.version>
<zkclient.version>0.1</zkclient.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis.spring.version>1.2.2</mybatis.spring.version>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<mysql.version>5.1.32</mysql.version>
<druid.version>1.0.9</druid.version>
<commons-fileupload.version>1.3.1</commons-fileupload.version>
<freemarker.version>2.3.23</freemarker.version>
<activemq.version>5.11.2</activemq.version>
<security.version>3.2.3.RELEASE</security.version>
<solrj.version>4.10.3</solrj.version>
<ik.version>2012_u6</ik.version>
</properties>
<!--依赖管理-->
<dependencyManagement>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- dubbo相关 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>${dubbo.version}</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>${zookeeper.version}</version>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>${zkclient.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.28</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.11.0.GA</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>${mybatis.paginator.version}</version>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<dependency>
<groupId>org.csource.fastdfs</groupId>
<artifactId>fastdfs</artifactId>
<version>1.2</version>
</dependency>
<!-- 文件上传组件 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- 缓存 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.8.1</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>1.7.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>${freemarker.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
<version>${activemq.version}</version>
</dependency>
<!-- 身份验证 -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>com.github.penggle</groupId>
<artifactId>kaptcha</artifactId>
<version>2.3.2</version>
<exclusions>
<exclusion>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-cas</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.jasig.cas.client</groupId>
<artifactId>cas-client-core</artifactId>
<version>3.3.3</version>
<!-- 排除log4j包冲突 -->
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- solr客户端 -->
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>
<version>${solrj.version}</version>
</dependency>
<dependency>
<groupId>com.janeluo</groupId>
<artifactId>ikanalyzer</artifactId>
<version>${ik.version}</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4.4</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.3</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>xml-apis</groupId>
<artifactId>xml-apis</artifactId>
<version>1.4.01</version>
</dependency>
</dependencies>
</dependencyManagement>
二、子项目最顶层项目common添加依赖
<dependencies>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
</dependency>
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
</dependency>
<!-- 文件上传组件 -->
<dependency>
<groupId>org.csource.fastdfs</groupId>
<artifactId>fastdfs</artifactId>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
</dependency>
<!-- 缓存 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<!-- dubbo相关 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-cas</artifactId>
</dependency>
<dependency>
<groupId>org.jasig.cas.client</groupId>
<artifactId>cas-client-core</artifactId>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- activeMq -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-client</artifactId>
<version>5.13.4</version>
</dependency>
<!-- freemarker -->
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.23</version>
</dependency>
<!-- github -->
<dependency>
<groupId>com.github.wxpay</groupId>
<artifactId>wxpay-sdk</artifactId>
<version>0.0.3</version>
</dependency>
<!-- solr -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-solr</artifactId>
<version>1.5.5.RELEASE</version>
</dependency>
</dependencies>
三、添加配置文件
省略
MyBatis逆向工程
mybatis官方推出逆向工程，用来连接数据库，根据表结构生成pojo实体类，生成映射文件和接口文件，但只要单表的增删改查。多表的增删改查需要手动写。
自动生成pojo和dao
注意：mybatis生成这些文件的方式是追加，不是覆盖。
如果想要重新生成，需要将原先的文件全部删除，然后重新运行，不然会造成文件损坏，无法使用。
jar包
逆向工程的配置文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<context id="testTables" targetRuntime="MyBatis3">
<!-- JavaBean 实现 序列化 接口 -->
<plugin type="org.mybatis.generator.plugins.SerializablePlugin">
</plugin>
<!-- genenat entity时,生成toString -->
<plugin type="org.mybatis.generator.plugins.ToStringPlugin" />
<!-- 自定义查询指定字段 -->
<plugin type="org.mybatis.generator.plugins.field.FieldsPlugin" />
<!-- 开启支持内存分页 可生成 支持内存分布的方法及参数
<plugin type="org.mybatis.generator.plugins.RowBoundsPlugin" />
-->
<!-- generate entity时，生成hashcode和equals方法-->
<plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin" />
<!-- 此处是将Example改名为Criteria 当然 想改成什么都行~ -->
<plugin type="org.mybatis.generator.plugins.RenameExampleClassPlugin">
<property name="searchString" value="Example$" />
<!-- 替换后
<property name="replaceString" value="Criteria" />
-->
<property name="replaceString" value="Query" />
</plugin>
<!-- 此处是将UserMapper.xml改名为UserDao.xml 当然 想改成什么都行~ -->
<plugin type="org.mybatis.generator.plugins.rename.RenameSqlMapperPlugin">
<property name="searchString" value="Mapper" />
<property name="replaceString" value="Dao" />
</plugin>
<!-- 此处是将UserMapper改名为UserDao 接口 当然 想改成什么都行~ -->
<plugin type="org.mybatis.generator.plugins.rename.RenameJavaMapperPlugin">
<property name="searchString" value="Mapper$" />
<property name="replaceString" value="Dao" />
</plugin>
<commentGenerator type="org.mybatis.generator.plugins.comment.MyCommentGenerator">
<!-- 是否去除自动生成的注释 true：是 ： false:否
<property name="suppressAllComments" value="true" />
-->
</commentGenerator>
<!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/pyg331" userId="root"
password="root">
</jdbcConnection>
<!-- <jdbcConnection driverClass="oracle.jdbc.OracleDriver"
connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:yycg"
userId="yycg"
password="yycg">
</jdbcConnection> -->
<!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和
NUMERIC 类型解析为java.math.BigDecimal -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- targetProject:生成PO类的位置 -->
<javaModelGenerator targetPackage="cn.itcast.core.pojo"
targetProject=".\src">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="false" />
<!-- 从数据库返回的值被清理前后的空格 -->
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- targetProject:mapper映射文件生成的位置 -->
<sqlMapGenerator targetPackage="cn.itcast.core.dao"
targetProject=".\resources">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>
<!-- targetPackage：mapper接口生成的位置 -->
<javaClientGenerator type="XMLMAPPER"
targetPackage="cn.itcast.core.dao"
targetProject=".\src">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<!-- 指定数据库表 -->
<table schema="" tableName="tb_order" domainObjectName="order.Order"/>
<table schema="" tableName="tb_order_item" domainObjectName="order.OrderItem"/>
<table schema="" tableName="tb_address" domainObjectName="address.Address"/>
<table schema="" tableName="tb_areas" domainObjectName="address.Areas"/>
<table schema="" tableName="tb_cities" domainObjectName="address.Cities"/>
<table schema="" tableName="tb_provinces" domainObjectName="address.Provinces"/>
<table schema="" tableName="tb_content" domainObjectName="ad.Content"/>
<table schema="" tableName="tb_content_category" domainObjectName="ad.ContentCategory"/>
<table schema="" tableName="tb_pay_log" domainObjectName="log.PayLog"/>
<table schema="" tableName="tb_seller" domainObjectName="seller.Seller"/>
<table schema="" tableName="tb_user" domainObjectName="user.User"/>
<table schema="" tableName="tb_brand" domainObjectName="good.Brand"/>
<table schema="" tableName="tb_goods" domainObjectName="good.Goods"/>
<table schema="" tableName="tb_goods_desc" domainObjectName="good.GoodsDesc"/>
<table schema="" tableName="tb_specification" domainObjectName="specification.Specification"/>
<table schema="" tableName="tb_specification_option" domainObjectName="specification.SpecificationOption"/>
<table schema="" tableName="tb_type_template" domainObjectName="template.TypeTemplate"/>
<table schema="" tableName="tb_freight_template" domainObjectName="template.FreightTemplate"/>
<table schema="" tableName="tb_item_cat" domainObjectName="item.ItemCat"/>
<table schema="" tableName="tb_item" domainObjectName="item.Item"/>
<table schema="" tableName="tb_seckill_goods" domainObjectName="seckill.SeckillGoods"/>
<table schema="" tableName="tb_seckill_order" domainObjectName="seckill.SeckillOrder"/>
</context>
</generatorConfiguration>
逆向工程执行的代码：需要先创建对应的包
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.internal.DefaultShellCallback;
public class GeneratorSqlmap {
public void generator() throws Exception{
List<String> warnings = new ArrayList<>();
boolean overwrite = true;
// File configFile = new File("D:\\intellijWorkSpace\\pyg_parent\\generator\\generatorConfig.xml");
File configFile = new File("generatorConfig.xml");
System.out.println(configFile.getAbsolutePath());
System.out.println(System.getProperty("user.dir"));
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = cp.parseConfiguration(configFile);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
callback, warnings);
myBatisGenerator.generate(null);
}
public static void main(String[] args) throws Exception {
try {
GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap();
generatorSqlmap.generator();
} catch (Exception e) {
e.printStackTrace();
}
}
}
测试
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath*:spring/application*.xml"})
public class TestBrandDao {
@Autowired
private BrandDao brandDao;
@Test
public void testFindBrandById() {
Brand brand = brandDao.selectByPrimaryKey(1L);
System.out.println(brand);
}
@Test
public void testFindBrandAll() {
//查询所有
List<Brand> brands = brandDao.selectByExample(null);
System.out.println(brands);
}
@Test
public void testFindBrandByWhere() {
//创建查询对象
BrandQuery brandQuery = new BrandQuery();
//设置查询的字段名，如果不写默认为*
brandQuery.setFields("id,name");
//不设置默认为false，不去重
brandQuery.setDistinct(true);
//设置排序，不设置默认不排序
brandQuery.setOrderByClause("id desc");
//创建where查询条件对象
BrandQuery.Criteria criteria = brandQuery.createCriteria();
//查询id为1的
criteria.andIdEqualTo(1L);
//根据name字段模糊查询
criteria.andNameLike("%想%");
//根据首字母字段模糊查询
criteria.andFirstCharLike("%L%");
List<Brand> brands = brandDao.selectByExample(brandQuery);
System.out.println(brands);
}
}