springboot配置mongodb连接池的方法步骤

application.yml 配置

mongodb: address: localhost:27017 database: soms username: admin password: 123456 # 连接池配置 clientName: soms-task # 客户端的标识，用于定位请求来源等 connectionTimeoutMs: 10000 # TCP连接超时，毫秒 readTimeoutMs: 15000 # TCP读取超时，毫秒 poolMaxWaitTimeMs: 3000 #当连接池无可用连接时客户端阻塞等待的时长，单位毫秒 connectionMaxIdleTimeMs: 60000 #TCP连接闲置时间，单位毫秒 connectionMaxLifeTimeMs: 120000 #TCP连接最多可以使用多久，单位毫秒 heartbeatFrequencyMs: 20000 #心跳检测发送频率，单位毫秒 minHeartbeatFrequencyMs: 8000 #最小的心跳检测发送频率，单位毫秒 heartbeatConnectionTimeoutMs: 10000 #心跳检测TCP连接超时，单位毫秒 heartbeatReadTimeoutMs: 15000 #心跳检测TCP连接读取超时，单位毫秒 connectionsPerHost: 100 # 每个host的TCP连接数 minConnectionsPerHost: 5 #每个host的最小TCP连接数 #计算允许多少个线程阻塞等待可用TCP连接时的乘数，算法： threadsAllowedToBlockForConnectionMultiplier*connectionsPerHost，当前配置允许10*20个线程阻塞 threadsAllowedToBlockForConnectionMultiplier: 10

用来获取配置参数的类

import lombok.Data;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.stereotype.Component;import org.springframework.validation.annotation.Validated;import javax.validation.constraints.Min;import javax.validation.constraints.NotNull;import javax.validation.constraints.Size;import java.util.List;@Data@Validated@Component@ConfigurationProperties(prefix = 'mongodb')public class MongoClientOptionProperties { /** 基础连接参数 */ private String database; private String username; private String password; @NotNull private List<String> address; /** 客户端连接池参数 */ @NotNull @Size(min = 1) private String clientName; /** socket连接超时时间 */ @Min(value = 1) private int connectionTimeoutMs; /** socket读取超时时间 */ @Min(value = 1) private int readTimeoutMs; /** 连接池获取链接等待时间 */ @Min(value = 1) private int poolMaxWaitTimeMs; /** 连接闲置时间 */ @Min(value = 1) private int connectionMaxIdleTimeMs; /** 连接最多可以使用多久 */ @Min(value = 1) private int connectionMaxLifeTimeMs; /** 心跳检测发送频率 */ @Min(value = 2000) private int heartbeatFrequencyMs; /** 最小的心跳检测发送频率 */ @Min(value = 300) private int minHeartbeatFrequencyMs; /** 计算允许多少个线程阻塞等待时的乘数，算法：threadsAllowedToBlockForConnectionMultiplier*connectionsPerHost */ @Min(value = 1) private int threadsAllowedToBlockForConnectionMultiplier; /** 心跳检测连接超时时间 */ @Min(value = 200) private int heartbeatConnectionTimeoutMs; /** 心跳检测读取超时时间 */ @Min(value = 200) private int heartbeatReadTimeoutMs; /** 每个host最大连接数 */ @Min(value = 1) private int connectionsPerHost; /** 每个host的最小连接数 */ @Min(value = 1) private int minConnectionsPerHost;}

配置类

package com.alkin.soms.common.mongo;import com.mongodb.MongoClient;import com.mongodb.MongoClientOptions;import com.mongodb.MongoCredential;import com.mongodb.ServerAddress;import org.apache.commons.lang.StringUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.BeanFactory;import org.springframework.beans.factory.NoSuchBeanDefinitionException;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.data.mongodb.MongoDbFactory;import org.springframework.data.mongodb.core.MongoTemplate;import org.springframework.data.mongodb.core.SimpleMongoDbFactory;import org.springframework.data.mongodb.core.convert.*;import org.springframework.data.mongodb.core.mapping.MongoMappingContext;import java.util.ArrayList;import java.util.List;@Configurationpublic class MongoConfig { private final Logger log = LoggerFactory.getLogger(MongoConfig.class); /** * 自定义mongo连接池 * * @param properties * @return */ @Bean @Autowired public MongoDbFactory mongoDbFactory(MongoClientOptionProperties properties) { //创建客户端参数 MongoClientOptions options = mongoClientOptions(properties); //创建客户端和Factory List<ServerAddress> serverAddresses = new ArrayList<>(); for (String address : properties.getAddress()) { String[] hostAndPort = address.split(':'); String host = hostAndPort[0]; int port = Integer.parseInt(hostAndPort[1]); ServerAddress serverAddress = new ServerAddress(host, port); serverAddresses.add(serverAddress); } String username = properties.getUsername(); String password = properties.getPassword(); String database = properties.getDatabase(); MongoClient mongoClient; if (StringUtils.isNotEmpty(username) && StringUtils.isNotEmpty(password)) { //创建认证客户端 MongoCredential mongoCredential = MongoCredential.createScramSha1Credential( username, database, password.toCharArray()); mongoClient = new MongoClient(serverAddresses.get(0), mongoCredential, options); } else { //创建非认证客户端 mongoClient = new MongoClient(serverAddresses, options); } SimpleMongoDbFactory mongoDbFactory = new SimpleMongoDbFactory(mongoClient, database); log.info('mongodb注入成功'); return mongoDbFactory; } @Bean(name = 'mongoTemplate') @Autowired public MongoTemplate getMongoTemplate(MongoDbFactory mongoDbFactory) { return new MongoTemplate(mongoDbFactory); } /** * mongo客户端参数配置 * * @return */ public MongoClientOptions mongoClientOptions(MongoClientOptionProperties properties) { return MongoClientOptions.builder().connectTimeout(properties.getConnectionTimeoutMs()).socketTimeout(properties.getReadTimeoutMs()).applicationName(properties.getClientName()).heartbeatConnectTimeout(properties.getHeartbeatConnectionTimeoutMs()).heartbeatSocketTimeout(properties.getHeartbeatReadTimeoutMs()).heartbeatFrequency(properties.getHeartbeatFrequencyMs()).minHeartbeatFrequency(properties.getMinHeartbeatFrequencyMs()).maxConnectionIdleTime(properties.getConnectionMaxIdleTimeMs()).maxConnectionLifeTime(properties.getConnectionMaxLifeTimeMs()).maxWaitTime(properties.getPoolMaxWaitTimeMs()).connectionsPerHost(properties.getConnectionsPerHost()).threadsAllowedToBlockForConnectionMultiplier( properties.getThreadsAllowedToBlockForConnectionMultiplier()).minConnectionsPerHost(properties.getMinConnectionsPerHost()).build(); } @Bean public MappingMongoConverter mappingMongoConverter(MongoDbFactory factory, MongoMappingContext context, BeanFactory beanFactory) { DbRefResolver dbRefResolver = new DefaultDbRefResolver(factory); MappingMongoConverter mappingConverter = new MappingMongoConverter(dbRefResolver, context); try { mappingConverter.setCustomConversions(beanFactory.getBean(MongoCustomConversions.class)); } catch (NoSuchBeanDefinitionException ignore) { } // Don’t save _class to dao mappingConverter.setTypeMapper(new DefaultMongoTypeMapper(null)); return mappingConverter; }}

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