Java消息驱动与Spring JMS应用详解
1. 消息驱动Bean的应用场景
消息驱动Bean(Message - Driven Bean,MDB)在处理贷款请求等场景中有着重要的应用。以下是一个处理贷款请求的示例代码:
public void onMessage(Message message) {
try{
// Get the data from the message
MapMessage msg = (MapMessage)message;
double salary = msg.getDouble("Salary");
double loanAmt = msg.getDouble("LoanAmount");
// Determine whether to accept or decline the loan
Lender lender = new Lender();
boolean accepted = lender.analyzeLoadRequest(salary, loanAmt);
// Send the results back to the borrower
TextMessage tmsg = qSession.createTextMessage();
tmsg.setText(accepted ? "Accepted!" : "Declined");
tmsg.setJMSCorrelationID(message.getJMSMessageID(
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