In view of the remote connection (such as database, the RabbitMq), generally there are two ways,
The first kind of traditional way of use:

 
In view of the remote connection (such as database, the RabbitMq), generally there are two ways, 
The first kind of traditional way of use: 

//1 create a ConnectionFactory and configure 
ConnectionFactory ConnectionFactory=new ConnectionFactory (Host, Port, Username, Password); 

//2 create connection through a connection factory 
The Connection Connection=connectionFactory. NewConnection (); 

//3 create a Channel through the connection 
The Channel Channel=connection. CreateChannel (); 

//4 sent via Channel data 
for(int i=0; I & lt; 5; I++) {
String MSG="Hello RabbitMQ!" ; 
Channel. BasicPublish (" ", "test001", null, MSG. GetBytes ()); 
} 

//5 remember to close related connection 
Channel. The close (); 
connection.close(); 

The second use SpringBoot automatic assembly

 
@ Configuration 
Public class RabbitMQTemplateConfig {
@ Value (" {rabbit. Addresses} ") 
Private String ADDRESSES; 
@ Value (" {rabbit. Virtual_host} ") 
Private String VIRTUAL_HOST; 
@ Value (" {rabbit. User_name} ") 
Private String USER_NAME; 
@ Value (" {rabbit. "} ") 
Private String PASSWORD; 

@ Bean 
Public CachingConnectionFactory CachingConnectionFactory () {
CachingConnectionFactory CachingConnectionFactory=new CachingConnectionFactory (); 

CachingConnectionFactory. SetAddresses (ADDRESSES); 
CachingConnectionFactory. SetVirtualHost (VIRTUAL_HOST); 
CachingConnectionFactory. SetUsername (USER_NAME); 
CachingConnectionFactory. SetPassword (PASSWORD); 

Return cachingConnectionFactory; 
} 

@ Bean 
Public RabbitTemplate RabbitTemplate () {
RabbitTemplate RabbitTemplate=new RabbitTemplate (cachingConnectionFactory ()); 
RabbitTemplate. SetMessageConverter (jackson2JsonMessageConverter ()); 
return rabbitTemplate; 
} 

@ Bean 
Public MessageConverter jackson2JsonMessageConverter () {
Jackson2JsonMessageConverter Jackson2JsonMessageConverter=new Jackson2JsonMessageConverter (); 
Return jackson2JsonMessageConverter; 
} 
} 

Then in the second when using SpringBoot automatic assembly, CachingConnectionFactory didn't hand release, is to create CachingConnectionFactory Bean to the IOC, need not release?