springboot集成dubbo+ssm+redis

本文详细介绍了如何使用SpringBoot集成Dubbo服务、SSM架构、Redis缓存以及JSP页面。从创建项目开始,通过MyBatis自动生成器配置数据库映射,到添加Dubbo、Zookeeper和Redis依赖,再到消费者和提供者的配置与实现,最后展示了完整的控制层和JSP页面示例。

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springboot集成dubbo、ssm、redis、JSP (笔记)

一、创建空项目在这里插入图片描述
二、创建接口工程(module -->不需要勾选webapp)
不需要勾选webapp
三、创建 提供者、消费者(需要勾选webapp)
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四、提供者添加generator依赖

<plugins>
            <!--mybatis 代码自动生成插件-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.6</version>
                <configuration>
                    <!--配置文件的位置-->
                    <configurationFile>GeneratorMapper.xml</configurationFile>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>
</plugins>

五、添加逆向工程文件并更改路径,注:需连接数据库后执行
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<?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>
    <!-- 指定连接数据库的 JDBC 驱动包所在位置,指定到你本机的完整路径 -->
    <classPathEntry location="D:\Java\jar\mysql-connector-java-8.0.16.jar"/>

    <!-- 配置 table 表信息内容体,targetRuntime 指定采用 MyBatis3 的版本 -->
    <context id="tables" targetRuntime="MyBatis3">
        <!-- 抑制生成注释,由于生成的注释都是英文的,可以不让它生成 -->
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!-- 配置数据库连接信息 -->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/springboot?serverTimezone=UTC"
                        userId="root"
                        password="123456">
        </jdbcConnection>
        <!-- 生成 model 类,targetPackage 指定 model 类的包名, targetProject 指定
       生成的 model 放在 eclipse 的哪个工程下面-->
        <javaModelGenerator targetPackage="com.lz.springboot.model"
        targetProject="D:\Java\IntelliJ IDEA 2019.3.1\
                            springboot-projects\springboot-dubbo-ssm-interface\src\main\java">
            <property name="enableSubPackages" value="false"/>
            <property name="trimStrings" value="false"/>
        </javaModelGenerator>
        <!-- 生成 MyBatis 的 Mapper.xml 文件,targetPackage 指定 mapper.xml 文件的
       包名, targetProject 指定生成的 mapper.xml 放在 eclipse 的哪个工程下面 -->
        <sqlMapGenerator targetPackage="com.lz.springboot.mapper"
                         targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>
        <!-- 生成 MyBatis 的 Mapper 接口类文件,targetPackage 指定 Mapper 接口类的包
       名, targetProject 指定生成的 Mapper 接口放在 eclipse 的哪个工程下面 -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.lz.springboot.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        </javaClientGenerator>
        <!-- 数据库表名及对应的 Java 模型类名 -->
        <table tableName="t_student" domainObjectName="Student"
               enableCountByExample="false"
               enableUpdateByExample="false"
               enableDeleteByExample="false"
               enableSelectByExample="false"
               selectByExampleQueryId="false"/>
    </context>
</generatorConfiguration>

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六、执行
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七、执行后生成model及mapper文件
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八、添加提供者依赖 pom.xml

<?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>
    <groupId>com.lz.springboot</groupId>
    <artifactId>springboot-dubbo-ssm-provider</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <!--springboot项目web工程起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.4.3</version>
        </dependency>

        <!--接口工程-->
        <dependency>
            <groupId>com.lz.springboot</groupId>
            <artifactId>springboot-dubbo-ssm-interface</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!--dubbo集成springboot依赖-->
        <dependency>
            <groupId>com.alibaba.spring.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>

        <!--注册中心-->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.10</version>
        </dependency>

        <!--mybatis集成springboot起步依赖-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>

        <!--mysql驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.16</version>
        </dependency>

        <!--springboot集成reds起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.4.3</version>
        </dependency>
		<!-- zookeeper依赖-->
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-framework</artifactId>
            <version>4.1.0</version>
        </dependency>

        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.6.0</version>
        </dependency>
    </dependencies>
	
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
        <plugins>
            <!--mybatis 代码自动生成插件-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.6</version>
                <configuration>
                    <!--配置文件的位置-->
                    <configurationFile>GeneratorMapper.xml</configurationFile>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.7.RELEASE</version>
                <configuration>
                    <mainClass>com.lz.springboot.SpringbootDubboSsmProviderApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

九、添加消费者依赖 pom.xml

<?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>
    <groupId>com.lz.springboot</groupId>
    <artifactId>springboot-dubbo-ssm-consumer</artifactId>
    <version>0.0.1-SNAPSHOT</version>


    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencies>
        <!--springboot框架web项目起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--接口工程依赖-->
        <dependency>
            <groupId>com.lz.springboot</groupId>
            <artifactId>springboot-dubbo-ssm-interface</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!--zookeeper注册中心-->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.10</version>
        </dependency>

        <!--dubbo集成springboot框架起步依赖-->
        <dependency>
            <groupId>com.alibaba.spring.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>
        <!--springboot集成jsp,仅仅只是展示jsp页面需要添加解析jsp页面的依赖-->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>

    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
    <!--指定文件夹-->
        <resources>
            <resource>
                <directory>src/main/webapp</directory>
                <targetPath>META-INF/resources</targetPath>
                <includes>
                    <include>*.*</include>
                </includes>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!--springboot编译打包插件-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.7.RELEASE</version>
                <configuration>
                    <mainClass>com.lz.springboot.SpringbootDubboSsmConsumerApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

十、添加接口、实现类、控制层(+webapp文件夹)

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指定webapp文件夹
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同时在pom文件指定路径
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十一、编写提供者和消费者配置文件
1.提供者 application.properties

# 应用服务 WEB 访问端口
server.port=8081
#上下文根
server.servlet.context-path=/

#设置数据库连接信息
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/springboot?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8&useSSL=true
spring.datasource.username=root
spring.datasource.password=123456

#设置dubbo配置
spring.application.name=springboot-dubbo-ssm-privader
#设置当前工程为服务提供者
spring.dubbo.server=true

#设置注册中心
spring.dubbo.registry=zookeeper://192.168.163.128:2181

#设置redis配置
spring.redis.host=192.168.163.128
spring.redis.port=6379



2.消费者 application.properties

#应用服务 WEB 访问端口
server.port=8080
#设置上下文根
server.servlet.context-path=/

#设置消费者名称
spring.application.name=springboot-dubbo-ssm-consumer
#设置zookeeper注册中心
spring.dubbo.registry=zookeeper://192.168.163.128:2181
#配置视图解析器
spring.mvc.view.prefix=/
spring.mvc.view.suffix=.jsp

十二、编写StudentService接口

package com.lz.springboot.service;

import com.lz.springboot.model.Student;

public interface StudentService {
    //根据学生id查询详情
    Student queryStudentById(Integer id);

    //获取学生总人数
    Integer queryAllStudentCount();
}

**十三、编写StudentServiceImpl实现类
1.编写实现类

package com.lz.springboot.service;

import com.alibaba.dubbo.config.annotation.Service;
import com.lz.springboot.mapper.StudentMapper;
import com.lz.springboot.model.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import java.util.concurrent.TimeUnit;


@Component
@Service(interfaceName = "com.lz.springboot.service.StudentService", version = "1.0.0", timeout = 25000)  //暴露接口服务
public class StudentServiceImpl implements StudentService {

    @Autowired
    private StudentMapper studentMapper;

    //注入redis模板对象
    @Autowired
    private RedisTemplate<Object, Object> redisTemplate;

    @Override
    public Student queryStudentById(Integer id) {
        return studentMapper.selectByPrimaryKey(id);
    }
    
    //首先去redis缓存中查询,如果有直接查询。如果没有,则去数据库查询并存放到redis缓存中
    //目的:提升系统性能,提升用户体验
    @Override
    public Integer queryAllStudentCount() {
        Integer allStudentCount = (Integer) redisTemplate.opsForValue().get("allStudentCount");
        //判断是否有值
        if (null == allStudentCount) {
            //去数据库查询
            allStudentCount = studentMapper.selectAllStudentCount();
            //并存放到redis缓存中,15,TimeUnit.SECONDS: 存放15秒
            redisTemplate.opsForValue().set("allStudentCount",allStudentCount,15, TimeUnit.SECONDS);
        }
        return allStudentCount;

    }
}

2.在提供者启动类上加 扫描注解开启dubbo配置注解
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3.在消费者启动类加开启dubbo注解
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十四、添加StudentController控制层和jsp页面

package com.lz.springboot.web;


import com.alibaba.dubbo.config.annotation.Reference;
import com.lz.springboot.model.Student;
import com.lz.springboot.service.StudentService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class StudentController {

    @Reference(interfaceName = "com.lz.springboot.service.StudentService",version = "1.0.0",timeout = 25000,check = false)
    private StudentService studentService;

    @RequestMapping("/student/detail/{id}")
    public String studentDetatil(Model model, @PathVariable("id") Integer id){
        Student student = studentService.queryStudentById(id);
        model.addAttribute("student",student);
        return "studentDetatil";
    }

    @GetMapping("/student/all/count")
    @ResponseBody
    public Object queryAllStudentCount(){
        Integer allStudentCount = studentService.queryAllStudentCount();
        return "学生总人数为:"+allStudentCount;
    }


}

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十五、启动redis、zookeeper(开启 ./zkServer.sh start 结束./zkServer.sh stop)
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十六、启动提供者、消费者
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十七、运行
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---------------------------------------------------END--------------------------------------------------------

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