SpringBoot - 常用配置彙總

1 起步依賴 - pom.xml

必備

		<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
		<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
 

SpringBoot整合MyBatis

		<dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

		
 

SpringBoot整合Junit

		<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

SpringBoot整合ElasticSearch

        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-high-level-client</artifactId>
            <version>7.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-client</artifactId>
            <version>7.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>7.4.0</version>
        </dependency>
		
		<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.4</version>
        </dependency>
 

RocketMQ

		<dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-client</artifactId>
            <version>4.5.2</version>
        </dependency>

2 配置檔案 - application.yml

# datasource
spring:
  datasource:
    url: jdbc:mysql:///es?serverTimezone=UTC
    username: root
    password: root
    driver-class-name: com.mysql.cj.jdbc.Driver


# mybatis
mybatis:
  mapper-locations: classpath:mapper/*Mapper.xml # mapper對映檔案路徑
  type-aliases-package: com.itheima.domain



# ElasticSearch
elasticsearch:
  host: 192.168.149.135
  port: 9200

3 SpringBoot整合ElasticSearch

2.1 config包下配置類 - ElasticSearchConfig

package com.itheima.elasticsearchdemo.config;

import org.apache.http.HttpHost;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@ConfigurationProperties(prefix = "elasticsearch")
public class ElasticSearchConfig {
    private String host;
    private int port;

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    public int getPort() {
        return port;
    }

    public void setPort(int port) {
        this.port = port;
    }

    @Bean
    public RestHighLevelClient client(){
        return new RestHighLevelClient(RestClient.builder(
                new HttpHost(
                        host,
                        port,
                        "http"
                )
        ));
    }
}

2.2 配置檔案 - application.yml

elasticsearch:
  host: 192.168.149.135
  port: 9200

2.3 測試類使用樣例

@SpringBootTest
class ElasticsearchDemoApplicationTests {

    @Autowired
    private RestHighLevelClient client;

    @Test
    void contextLoads() {
        System.out.println(client);
    }


    /**
     * 新增索引
     */
    @Test
    public void addIndex() throws IOException {
        //1.使用client獲取操作索引的物件
        IndicesClient indicesClient = client.indices();
        //2.具體操作，獲取返回值
        CreateIndexRequest createRequest = new CreateIndexRequest("itheima");
        CreateIndexResponse response = indicesClient.create(createRequest, RequestOptions.DEFAULT);
        //3.根據返回值判斷結果
        System.out.println(response.isAcknowledged());
    }
}