springboot的一些配置

    以往寫web都是以大量的xml文件開始,此次課堂上老師要求用springboot完成項目。剛開始接觸時,對於已經習慣使用xml配置的人確實很不習慣,可是研究久了,發現springboot在配置方面確實很是方便,項目搭建至關迅速。可是有的網絡上找資料很不方便,所以,這裏對本身在使用中查到的一些用法作以總結。css

    1、基本框架搭建

    新建maven(gradle)項目文件,在pom文件中添加springboot的項目引用。spring.io上提供了一個例子:http://spring.io/guides/gs/spring-boot/html

    pom文件以下:java

<?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>org.springframework</groupId>
    <artifactId>gs-spring-boot</artifactId>
    <version>0.1.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.2.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

    <properties>
        <java.version>1.8</java.version>
    </properties>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

    snapshot版本和release版本的依賴不一樣,簡單點的配置是release版本。mysql

    建立HelloWorldController,用以路徑分發git

package hello;

import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMapping;

@RestController
public class HelloController {

    @RequestMapping("/")
    public String index() {
        return "Greetings from Spring Boot!";
    }

}

而後新建Application主類,運行main函數,即可以啓動springboot默認服務器完成配置github

package hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

    @SpringBootApplication 標籤表明了 @Configuration, @EnableAutoConfiguration, @ComponentScan 這3個標籤。web

    運行之後,訪問localhost:8080就能獲得index函數返回的數據。spring

    application.yml(.properties)中可配置端口和根路徑    sql

server:
    context-path: /
    port: 8080

 

    2、靜態資源

    springboot默認的靜態資源路徑是 :
    /META-INF/resources/ 
    /resources/ 
    /static/ 
    /public/ 數據庫

    固然也能夠本身配置,以下:

@Configuration
@ComponentScan
public class MyConfiguration extends WebMvcConfigurerAdapter {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
//        registry.addResourceHandler("/js/**")
//                .addResourceLocations("classpath:/js/");
//        registry.addResourceHandler("/css/**")
//                .addResourceLocations("classpath:/css/");
//        registry.addResourceHandler("/WEB-INF/resources/image/**")
//                .addResourceLocations("classpath:/image/");
//        registry.addResourceHandler("/static/**")
//                .addResourceLocations("classpath:/html/");
//        registry.addResourceHandler("/**").addResourceLocations("/");
    }
}

    addResourceHandler("/js/**")攔截/js/**的訪問

    addResourceLocations("classpath:/js/");定義到classpath:/js/路徑下

 

    3、連接池

    使用druid鏈接池,pom中添加:

<!-- mysql 驅動 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.40</version>
        </dependency>
        <!-- 數據庫鏈接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.5</version>
        </dependency>

    而後在application.yml(.properties)中配置便可

spring:
    datasource:
        name: sd
        url: jdbc:mysql://***.***.***.***/3306/sd?useUnicode=true&characterEncoding=utf8
        username: *
        password: *
        # 使用druid數據源
        # 在此處配置便可
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.jdbc.Driver
        filters: stat
        maxActive: 20
        initialSize: 1
        maxWait: 60000
        minIdle: 1
        timeBetweenEvictionRunsMillis: 60000
        minEvictableIdleTimeMillis: 300000
        validationQuery: select 'x'
        testWhileIdle: true
        testOnBorrow: false
        testOnReturn: false
        poolPreparedStatements: true
        maxOpenPreparedStatements: 20

 

    4、mybatis以及mapper插件(mybatis-plus)、分頁插件(pagehelper)

    一樣,先添加pom

<!-- page helper-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>4.1.6</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>RELEASE</version>
        </dependency>

        <!--mybatis-plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>1.4.9</version>
        </dependency>

    建立mybatis-plus的mapper生成函數

package Generator;

import com.baomidou.mybatisplus.annotations.IdType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.ConfigGenerator;

public class EntityGenerator {
    public static void main(String[] args) {
        ConfigGenerator cg = new ConfigGenerator();
        // 配置 MySQL 鏈接
        cg.setDbDriverName("com.mysql.jdbc.Driver");
        cg.setDbUser("*");
        cg.setDbPassword("*");
        cg.setDbUrl("jdbc:mysql://***.***.***.***:3306/sd?characterEncoding=utf8");
        // 配置包名
        cg.setEntityPackage("com.attendance.model");
        cg.setMapperPackage("com.attendance.mapper");
        cg.setServicePackage("com.attendance.service");
        cg.setXmlPackage("com.attendance.mapper.xml");
        cg.setServiceImplPackage("com.attendance.service.impl");

        // 配置表主鍵策略
        cg.setIdType(IdType.AUTO);

        // 配置保存路徑
        cg.setSaveDir("E:\\Users\\OPTIPLEX\\Documents\\Codes\\Attendency\\src\\main\\java\\");
        // 其餘參數請根據上面的參數說明自行配置,當全部配置完善後,運行AutoGenerator.run()方法生成Code
        // 生成代碼
        AutoGenerator.run(cg);
    }
}

    函數執行之後能夠生成相應的service/mapper/bean等等類

    經過配置MybatisPlusConfig就可使用通用單表mapper、service函數,或者不通過配置自定義sql方法。具體內容見mybatis-plus官網。pagehelper同理。

 

    5、logback配置

    application.yml文件中添加

logging:
    config: classpath:logback.xml
    path: /Users/attendancy/logs
    level: debug

    resources下建立logback.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!-- 默認配置 -->
<configuration>
    <include resource="org/springframework/boot/logging/logback/base.xml"/>
    <logger name="org.springframework.web" level="DEBUG"/>
    <logger name="com.ibatis" level="DEBUG" />
    <!--<logger name="com.ibatis.common.jdbc.SimpleDataSource" level="DEBUG" />-->
    <!--<logger name="com.ibatis.common.jdbc.ScriptRunner" level="DEBUG" />-->
    <!--<logger name="com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate" level="DEBUG" />-->
    <!--<logger name="java.sql.Connection" level="DEBUG" />-->
    <!--<logger name="java.sql.Statement" level="DEBUG" />-->
    <!--<logger name="java.sql.PreparedStatement" level="DEBUG" />-->
</configuration>

 

其餘更多配置使用的使用再作記錄。。。。。。。。

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