使用springboot+springmvc+mybaits-spring+mybatis-generator開發

使用springboot+springmvc+mybatis-generator開發web程式，也算是自己參考網上的知識自己寫出來的吧，裡面還很多東西值得深究學習

使用IDEA和MAVEN建立springboot項目：具體怎麼建立網上很多

使用maven就看一下pom.xml檔案

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.practice</groupId>
    <artifactId>SSM</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.6.RELEASE</version>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <start-class>com.practice.App</start-class>
        <java.version>1.7</java.version>
        <lombok.version>1.14.8</lombok.version>
        <log4jdbc.log4j2.version>1.16</log4jdbc.log4j2.version>
        <rest.assured.version>2.3.3</rest.assured.version>
    </properties>

    <dependencies>
        <!--MG依賴-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.2.8</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.3</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-maven-plugin</artifactId>
            <version>1.3.3</version>
            <scope>test</scope>
        </dependency>
        <!--druid資料庫連接配接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.26</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>
        <!--springboot依賴-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.bgee.log4jdbc-log4j2</groupId>
            <artifactId>log4jdbc-log4j2-jdbc4.1</artifactId>
            <version>${log4jdbc.log4j2.version}</version>
        </dependency>
        <!--springboottest依賴-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- Springboot 熱部署 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <version>1.3.6.RELEASE</version>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>com.jayway.restassured</groupId>
            <artifactId>rest-assured</artifactId>
            <version>${rest.assured.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>4.2.7.RELEASE</version>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.21</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
            <version>1.3.6.RELEASE</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.1.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.1</version>
        </dependency>

        <!-- mybatis 分頁插件 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>4.1.6</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <!--MG的插件-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.3</version>
                <configuration>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
                <dependencies>
                    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java
            配置這個依賴主要是為了等下在配置MG的時候可以不用配置classPathEntry這樣的一個屬性，避免
            代碼的耦合度太高 -->
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.38</version>
                    </dependency>
                </dependencies>
            </plugin>
            <!--springboot的插件-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <dependencies>
                    <dependency>
                        <groupId>org.springframework</groupId>
                        <artifactId>springloaded</artifactId>
                        <version>${spring-loaded.version}</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

</project>

修改springboot的配置檔案，這裡一共有四個配置檔案：application.properties（預設讀取）、application-dev.properties（開發環境）、application-prod.properties（生成環境）、application-test.properties（測試環境）

預設會讀取resource目錄下的application.properties，内容如下

spring.thymeleaf.cache=false
logging.level.jdbc=OFF
logging.level.jdbc.sqltiming=error
logging.level.jdbc.resultsettable=error
#申明使用哪個配置檔案
spring.profiles.active=dev

通過spring.profiles.active=dev這個屬性來控制具體使用哪個配置（dev,prod,test）.

以application-dev.properties（開發環境）為例，配置如下：

#資料庫配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/ssm
spring.datasource.username=root
spring.datasource.password=root
# 下面為連接配接池的補充設定，應用到上面所有資料源中# 初始化大小，最小，最大
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
# 配置擷取連接配接等待逾時的時間
spring.datasource.maxWait=60000
# 配置間隔多久才進行一次檢測，檢測需要關閉的空閑連接配接，機關是毫秒
spring.datasource.timeBetweenEvictionRunsMillis=60000
# 配置一個連接配接在池中最小生存的時間，機關是毫秒
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 打開PSCache，并且指定每個連接配接上PSCache的大小
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置監控統計攔截的filters，去掉後監控界面sql無法統計，'wall'用于防火牆
spring.datasource.filters=stat,wall,log4j
# 通過connectProperties屬性來打開mergeSql功能；慢SQL記錄
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
# 合并多個DruidDataSource的監控資料
#spring.datasource.useGlobalDataSourceStat=true

#視圖模型
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.suffix=.html
spring.thymeleaf.cache=false
spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.content-type=text/html
spring.thymeleaf.check-template-location=true

主要是資料源的配置，這裡使用druid資料源，然後通過DruidDataSourceConfig.java讀取資料源的配置：

/*
* Copyright (c) 2016 www.bsfit.com.cn All Rights Reserved.
*/
package com.practice.cfg;

import com.alibaba.druid.pool.DruidDataSource;
import com.github.pagehelper.PageHelper;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.context.ApplicationContextException;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.util.StringUtils;

import java.sql.SQLException;
import java.util.Arrays;
import java.util.Properties;

/**
 * @author: YeJunwei  Date: 2016/12/2 Time: 15:07
 */
@Configuration
@EnableTransactionManagement
@MapperScan(value = "com.practice.mapper")
public class DruidDataSourceConfig implements EnvironmentAware {

    private Environment environment;
    private RelaxedPropertyResolver propertyResolver;

    @Override
    public void setEnvironment(Environment environment) {
        this.environment = environment;
        this.propertyResolver = new RelaxedPropertyResolver(environment, "spring.datasource.");
    }

    //注冊dataSource
    @Bean(initMethod = "init", destroyMethod = "close")
    public DruidDataSource dataSource() throws SQLException {
        if (StringUtils.isEmpty(propertyResolver.getProperty("url"))) {
            System.out.println("Your database connection pool configuration is incorrect!"
                    + " Please check your Spring profile, current profiles are:"
                    + Arrays.toString(environment.getActiveProfiles()));
            throw new ApplicationContextException(
                    "Database connection pool is not configured correctly");
        }
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setDriverClassName(propertyResolver.getProperty("driver-class-name"));
        druidDataSource.setUrl(propertyResolver.getProperty("url"));
        druidDataSource.setUsername(propertyResolver.getProperty("username"));
        druidDataSource.setPassword(propertyResolver.getProperty("password"));
        druidDataSource.setInitialSize(Integer.parseInt(propertyResolver.getProperty("initialSize")));
        druidDataSource.setMinIdle(Integer.parseInt(propertyResolver.getProperty("minIdle")));
        druidDataSource.setMaxActive(Integer.parseInt(propertyResolver.getProperty("maxActive")));
        druidDataSource.setMaxWait(Integer.parseInt(propertyResolver.getProperty("maxWait")));
        druidDataSource.setTimeBetweenEvictionRunsMillis(Long.parseLong(propertyResolver.getProperty("timeBetweenEvictionRunsMillis")));
        druidDataSource.setMinEvictableIdleTimeMillis(Long.parseLong(propertyResolver.getProperty("minEvictableIdleTimeMillis")));
        druidDataSource.setValidationQuery(propertyResolver.getProperty("validationQuery"));
        druidDataSource.setTestWhileIdle(Boolean.parseBoolean(propertyResolver.getProperty("testWhileIdle")));
        druidDataSource.setTestOnBorrow(Boolean.parseBoolean(propertyResolver.getProperty("testOnBorrow")));
        druidDataSource.setTestOnReturn(Boolean.parseBoolean(propertyResolver.getProperty("testOnReturn")));
        druidDataSource.setPoolPreparedStatements(Boolean.parseBoolean(propertyResolver.getProperty("poolPreparedStatements")));
        druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(Integer.parseInt(propertyResolver.getProperty("maxPoolPreparedStatementPerConnectionSize")));
        druidDataSource.setFilters(propertyResolver.getProperty("filters"));
        return druidDataSource;
    }

    @Bean
    public SqlSessionFactory sqlSessionFactory() throws Exception {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource());
        //mybatis分頁
        PageHelper pageHelper = new PageHelper();
        Properties props = new Properties();
        props.setProperty("dialect", "mysql");
        props.setProperty("reasonable", "true");
        props.setProperty("supportMethodsArguments", "true");
        props.setProperty("returnPageInfo", "check");
        props.setProperty("params", "count=countSql");
        pageHelper.setProperties(props); //添加插件
        sqlSessionFactoryBean.setPlugins(new Interceptor[]{pageHelper});
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath:com/practice/sqlmap/*.xml"));
        return sqlSessionFactoryBean.getObject();
    }

    @Bean
    public PlatformTransactionManager transactionManager() throws SQLException {
        return new DataSourceTransactionManager(dataSource());
    }
}

這裡因為後面要用到mybatis-generator和mybatise-spring內建是以需要sqlSession，這裡比較重要的就是這裡要指定使用的xml的位置和使用@MapperScan(value = “com.practice.mapper”)注解來掃描與xml相對應的mapper接口：

sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath:com/practice/sqlmap/*.xml"));

3，使用mybatis-generator自動生成代碼，在pom檔案中添加了MG的插件是以這裡配置一下MG的配置檔案就可以，放在resource目錄下：generatorConfig.properties，generatorConfig.xml。

先建立user表：

DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` varchar(50) NOT NULL,
  `name` varchar(255) DEFAULT NULL,
  `age` int(50) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

generatorConfig.xml：

<?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>
    <properties resource="generatorConfig.properties"/>

    <context id="ssm" targetRuntime="MyBatis3">
        <plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin" />
        <plugin type="org.mybatis.generator.plugins.SerializablePlugin" />
        <plugin type="org.mybatis.generator.plugins.CaseInsensitiveLikePlugin" />
        <!-- <plugin type="org.mybatis.generator.plugins.ToStringPlugin"></plugin> -->
        <commentGenerator>
            <property name="suppressDate" value="true" />
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <!--
        <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@10.100.1.20:1521:db1"
          userId="rams_test" password="bangsun">
        </jdbcConnection>
        -->
        <jdbcConnection driverClass="${driver}"
                        connectionURL="${url}" userId="${username}" password="${password}">
        </jdbcConnection>

        <javaTypeResolver>
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>

        <javaModelGenerator targetPackage="com.practice.pojo" targetProject="src/main/java">
            <property name="constructorBased" value="true" />
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

        <sqlMapGenerator targetPackage="com.practice.sqlmap" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

        <javaClientGenerator type="XMLMAPPER" targetPackage="com.practice.mapper"
                             targetProject="src/main/java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>


        <table schema="mybatis" tableName="user" domainObjectName="User">
            <property name="constructorBased" value="true" />
            <property name="useActualColumnNames" value="false" />
            <property name="ignoreQualifiersAtRuntime" value="true" />
        </table>
    </context>
</generatorConfiguration>

generatorConfig.properties：

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/ssm
username=root
password=root

使用springboot+springmvc+mybaits-spring+mybatis-generator開發

配置好之後輕按兩下，就會在指定目錄生成代碼了。

使用springboot+springmvc+mybaits-spring+mybatis-generator開發

然後就是編寫controller和service了：

IUserService.java：

package com.practice.service;

import com.practice.pojo.User;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

/**
 * @author: YeJunwei  Date: 2016/12/5 Time: 10:54
 */
public interface IUserService {
    User getUserById(String id);
}

UserServiceImpl.java：

/*
* Copyright (c) 2016 www.bsfit.com.cn All Rights Reserved.
*/
package com.practice.service.impl;

import com.practice.mapper.UserMapper;
import com.practice.pojo.User;
import com.practice.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

/**
 * @author: YeJunwei  Date: 2016/12/5 Time: 10:54
 */
@Component
public class UserServiceImpl implements IUserService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public User getUserById(String id) {
//        UserExample example=new UserExample();
//        example.createCriteria().andIdEqualTo(id);
        User user=userMapper.selectByPrimaryKey(id);
        return user;
    }
}

UserController.java

/*
* Copyright (c) 2016 www.bsfit.com.cn All Rights Reserved.
*/
package com.practice.controller;

import com.alibaba.fastjson.JSON;
import com.practice.pojo.User;
import com.practice.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author: YeJunwei  Date: 2016/12/5 Time: 10:31
 */
@RestController
public class UserController {
    @Autowired
    private IUserService userService;
    @RequestMapping(value = "/user",method = RequestMethod.GET)
    public String getUserById(String id){
        User user=userService.getUserById(id);
        String userStr= JSON.toJSONString(user);
        return userStr;
    }
}

最後啟動App.java

package com.practice;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

public class App {

public static void main(String[] args) {

SpringApplication.run(App.class, args);

}

使用springboot+springmvc+mybaits-spring+mybatis-generator開發

使用springboot+springmvc+mybaits-spring+mybatis-generator開發

繼續閱讀

springboot項目時間不一緻解決方案一、springboot項目時間不一緻解決方案

spring mvc 頁面傳遞數組背景接收方式spring mvc 頁面傳遞數組背景接收方式

Swagger-UI的使用一、添加依賴二、建立配置類三、注解

将swagger-ui中的接口導入postman

聊一聊Swagger-UI的那些事情軟體簡介Swagger 原生Bootstrap-ui Bootstrap的UIKnife4j Bootstrap的更新版的UI

springboot使用 swagger-ui 2.10.5 有關版本更新帶來的問題

Intellij idea基于Maven 的SSM 架構整合

jdk1.7+Eclipse+Maven3.5+Hadoop2.7.3建構hadoop項目

微服務-性能壓測\緩存redis和分布式鎖redisson和SpringCache

java 8 Lamda 求 List 中 Bigdecimal類型的各種值求最大值求最小值求和求平均值

IDEA以http形式clone代碼連接配接逾時

(SpringBoot)日志種類：log、monitor、access、out、gc、backup

maven No compiler is provided in this environment. Perhaps you are running on a JRE rather than a J

SpringMVC傳回用戶端Json/XML資料

Ajax發送和擷取json資料到Spring mvc 1.spring mvc後端2.web前段

Opendaylight課堂之深度剖析toaster（一）