SpringBoot中使用MongoDB的连接池配置
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2022-06-19 15:09:06
目录配置文件映射为javabean覆盖mongodbfactorymongodb测试创建dao接口及实现在springboot中，我们可以通过引入 spring-boot-starter-data-m...
在springboot中，我们可以通过引入 spring-boot-starter-data-mongodb 依赖来实现spring-data-mongodb 的自动配置。但是，默认情况下，该依赖并没有像使用mysql或者redis那样为我们提供连接池配置的功能。因此，我们需要自行重写 mongodbfactory，实现mongodb客户端连接的参数配置扩展。需要说明的是，mongodb的客户端本身就是一个连接池，因此，我们只需要配置客户端即可。
引入依赖
<parent> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-parent</artifactid> <version>2.0.2.release</version> </parent> <dependencies> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-data-mongodb</artifactid> </dependency> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-test</artifactid> <scope>test</scope> </dependency> </dependencies>
配置文件
为了方便对mongodb进行统一管理，我们将相关的配置抽取到 mongo-pool.properties 中，前缀为spring.data.mongodb（前缀可自己随意配置）：
spring.data.mongodb.address=172.16.250.234:27017,172.16.250.239:27017,172.16.250.240:27017 spring.data.mongodb.replica-set=rs0 spring.data.mongodb.database=test spring.data.mongodb.username=admin spring.data.mongodb.password=admin # configure spring.data.mongodbdb pool spring.data.mongodb.min-connections-per-host=10 spring.data.mongodb.max-connections-per-host=100 spring.data.mongodb.threads-allowed-to-block-for-connection-multiplier=5 spring.data.mongodb.server-selection-timeout=30000 spring.data.mongodb.max-wait-time=120000 spring.data.mongodb.max-connection-idel-time=0 spring.data.mongodb.max-connection-life-time=0 spring.data.mongodb.connect-timeout=10000 spring.data.mongodb.socket-timeout=0 spring.data.mongodb.socket-keep-alive=false spring.data.mongodb.ssl-enabled=false spring.data.mongodb.ssl-invalid-host-name-allowed=false spring.data.mongodb.always-use-m-beans=false spring.data.mongodb.heartbeat-socket-timeout=20000 spring.data.mongodb.heartbeat-connect-timeout=20000 spring.data.mongodb.min-heartbeat-frequency=500 spring.data.mongodb.heartbeat-frequency=10000 spring.data.mongodb.local-threshold=15 spring.data.mongodb.authentication-database=auth_dev
配置文件映射为javabean
为方便调用，将上述配置包装成一个配置实体类，代码如下:
import java.util.list;
import org.springframework.boot.context.properties.configurationproperties;
import org.springframework.context.annotation.propertysource;
import org.springframework.stereotype.component;
@component
@propertysource(value = "classpath:mongo-pool.properties")
@configurationproperties(prefix = "spring.data.mongodb")
public class mongosettingsproperties {
private list<string> address;
private string replicaset;
private string database;
private string username;
private string password;
private integer minconnectionsperhost = 0;
private integer maxconnectionsperhost = 100;
private integer threadsallowedtoblockforconnectionmultiplier = 5;
private integer serverselectiontimeout = 30000;
private integer maxwaittime = 120000;
private integer maxconnectionidletime = 0;
private integer maxconnectionlifetime = 0;
private integer connecttimeout = 10000;
private integer sockettimeout = 0;
private boolean socketkeepalive = false;
private boolean sslenabled = false;
private boolean sslinvalidhostnameallowed = false;
private boolean alwaysusembeans = false;
private integer heartbeatconnecttimeout = 20000;
private integer heartbeatsockettimeout = 20000;
private integer minheartbeatfrequency = 500;
private integer heartbeatfrequency = 10000;
private integer localthreshold = 15;
private string authenticationdatabase;
// 省略getters和setters方法
}
覆盖mongodbfactory
自定义创建一个mongodbfactory用来替代springboot为我们自动装配的mongodbfactory，代码如下：
import java.util.arraylist;
import java.util.list;
import org.slf4j.logger;
import org.slf4j.loggerfactory;
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.simplemongodbfactory;
import com.mongodb.mongoclient;
import com.mongodb.mongoclientoptions;
import com.mongodb.mongocredential;
import com.mongodb.serveraddress;
@configuration
public class mongoconfig {
private static final logger logger = loggerfactory.getlogger(mongoconfig.class);
// 覆盖容器中默认的mongodbfacotry bean
@bean
@autowired
public mongodbfactory mongodbfactory(mongosettingsproperties properties) {
// 客户端配置（连接数，副本集群验证）
mongoclientoptions.builder builder = new mongoclientoptions.builder();
builder.connectionsperhost(properties.getmaxconnectionsperhost());
builder.minconnectionsperhost(properties.getminconnectionsperhost());
if (properties.getreplicaset() != null) {
builder.requiredreplicasetname(properties.getreplicaset());
}
builder.threadsallowedtoblockforconnectionmultiplier(
properties.getthreadsallowedtoblockforconnectionmultiplier());
builder.serverselectiontimeout(properties.getserverselectiontimeout());
builder.maxwaittime(properties.getmaxwaittime());
builder.maxconnectionidletime(properties.getmaxconnectionidletime());
builder.maxconnectionlifetime(properties.getmaxconnectionlifetime());
builder.connecttimeout(properties.getconnecttimeout());
builder.sockettimeout(properties.getsockettimeout());
// builder.socketkeepalive(properties.getsocketkeepalive());
builder.sslenabled(properties.getsslenabled());
builder.sslinvalidhostnameallowed(properties.getsslinvalidhostnameallowed());
builder.alwaysusembeans(properties.getalwaysusembeans());
builder.heartbeatfrequency(properties.getheartbeatfrequency());
builder.minheartbeatfrequency(properties.getminheartbeatfrequency());
builder.heartbeatconnecttimeout(properties.getheartbeatconnecttimeout());
builder.heartbeatsockettimeout(properties.getheartbeatsockettimeout());
builder.localthreshold(properties.getlocalthreshold());
mongoclientoptions mongoclientoptions = builder.build();
// mongodb地址列表
list<serveraddress> serveraddresses = new arraylist<serveraddress>();
for (string address : properties.getaddress()) {
string[] hostandport = address.split(":");
string host = hostandport[0];
integer port = integer.parseint(hostandport[1]);
serveraddress serveraddress = new serveraddress(host, port);
serveraddresses.add(serveraddress);
}
logger.info("serveraddresses:" + serveraddresses.tostring());
// 连接认证
// mongocredential mongocredential = null;
// if (properties.getusername() != null) {
// mongocredential = mongocredential.createscramsha1credential(
// properties.getusername(), properties.getauthenticationdatabase() != null
// ? properties.getauthenticationdatabase() : properties.getdatabase(),
// properties.getpassword().tochararray());
// }
// 创建认证客户端
// mongoclient mongoclient = new mongoclient(serveraddresses, mongocredential, mongoclientoptions);
// 创建非认证客户端
mongoclient mongoclient = new mongoclient(serveraddresses, mongoclientoptions);
// 创建mongodbfactory
mongodbfactory mongodbfactory = new simplemongodbfactory(mongoclient, properties.getdatabase());
return mongodbfactory;
}
}
mongodb测试
创建数据实体
import java.io.serializable;
public class userentity implements serializable {
private static final long serialversionuid = 1l;
private long id;
private string username;
private string password;
public long getid() {
return id;
}
public void setid(long id) {
this.id = id;
}
public string getusername() {
return username;
}
public void setusername(string username) {
this.username = username;
}
public string getpassword() {
return password;
}
public void setpassword(string password) {
this.password = password;
}
public string tostring() {
return "id: " + id + ",username: " + username + ",password: " + password;
}
}
创建dao接口及实现
public interface userdao {
void saveuser(userentity user);
userentity finduserbyname(string username);
}
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.data.mongodb.core.mongotemplate;
import org.springframework.data.mongodb.core.query.criteria;
import org.springframework.data.mongodb.core.query.query;
import org.springframework.stereotype.component;
@component
public class userdaoimpl implements userdao {
@autowired
private mongotemplate mongotemplate;
@override
public void saveuser(userentity user) {
mongotemplate.save(user);
}
@override
public userentity finduserbyname(string username) {
query query = new query(criteria.where("username").is(username));
userentity user = mongotemplate.findone(query, userentity.class);
return user;
}
}
编写测试代码
import java.util.optional;
import org.junit.test;
import org.junit.runner.runwith;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.boot.test.context.springboottest;
import org.springframework.data.domain.example;
import org.springframework.test.context.junit4.springrunner;
import com.pengjunlee.userdao;
import com.pengjunlee.userentity;
import com.pengjunlee.userrepository;
@runwith(springrunner.class)
@springboottest
public class mongotest {
@autowired
private userdao userdao;
@autowired
private userrepository userrepository;
@test
public void testsaveuser() {
userentity user = new userentity();
user.setid(88l);
user.setusername("xiaoming");
user.setpassword("123456");
userdao.saveuser(user);
}
@test
public void testfinduser01() {
userentity user = userdao.finduserbyname("xiaoming");
system.out.println(user);
}
@test
public void testfinduser02() {
userentity queryuser = new userentity();
queryuser.setusername("xiaoming");
example<userentity> example = example.of(queryuser);
optional<userentity> optional = userrepository.findone(example);
system.out.println(optional.get());
}
}
查询结果：
id: 88,username: xiaoming,password: 123456
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