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/**
* @Author: shershon
* @Description:
* @Date: 2022/10/02 14:03
*/
package rocketmqpkg
import (
"context"
"fmt"
"github.com/apache/rocketmq-client-go/v2"
"github.com/apache/rocketmq-client-go/v2/consumer"
"github.com/apache/rocketmq-client-go/v2/primitive"
"os"
"time"
)
// 消费普通消息
func ConsumeSimple() {
newPushConsumer, err := rocketmq.NewPushConsumer(
consumer.WithGroupName("test"),
consumer.WithNameServer([]string{"127.0.0.1:9876"}),
)
defer func(newPushConsumer rocketmq.PushConsumer) {
err := newPushConsumer.Shutdown()
if err != nil {
fmt.Printf("关闭consumer失败 err:%s \n", err)
os.Exit(1)
}
}(newPushConsumer)
if err != nil {
fmt.Printf("生成consumer失败 err:%s \n", err)
os.Exit(1)
}
err = newPushConsumer.Subscribe("SimpleTopic", consumer.MessageSelector{},
func(ctx context.Context, msgs ...*primitive.MessageExt) (consumer.ConsumeResult, error) {
for _, msg := range msgs {
nowStr := time.Now().Format("2006-01-02 15:04:05")
fmt.Printf("%s 读取到一条消息,消息内容: %s \n", nowStr, string(msg.Body))
}
return consumer.ConsumeSuccess, nil
},
)
if err != nil {
fmt.Printf("读取消息失败 err:%s \n", err)
os.Exit(1)
}
err = newPushConsumer.Start()
if err != nil {
fmt.Printf("启动consumer失败 err:%s \n", err)
os.Exit(1)
}
time.Sleep(time.Hour)
}
// 消费延时消息
func ConsumeDelay() {
newPushConsumer, err := rocketmq.NewPushConsumer(
consumer.WithGroupName("test"),
consumer.WithNameServer([]string{"127.0.0.1:9876"}),
)
defer func(newPushConsumer rocketmq.PushConsumer) {
err := newPushConsumer.Shutdown()
if err != nil {
fmt.Printf("关闭consumer失败 err:%s \n", err)
os.Exit(1)
}
}(newPushConsumer)
if err != nil {
fmt.Printf("生成consumer失败 err:%s \n", err)
os.Exit(1)
}
err = newPushConsumer.Subscribe("DelayTopic", consumer.MessageSelector{},
func(ctx context.Context, msgs ...*primitive.MessageExt) (consumer.ConsumeResult, error) {
for _, msg := range msgs {
nowStr := time.Now().Format("2006-01-02 15:04:05")
fmt.Printf("%s 读取到一条消息,消息内容: %s \n", nowStr, string(msg.Body))
}
return consumer.ConsumeSuccess, nil
},
)
if err != nil {
fmt.Printf("读取消息失败 err:%s \n", err)
os.Exit(1)
}
err = newPushConsumer.Start()
if err != nil {
fmt.Printf("启动consumer失败 err:%s \n", err)
os.Exit(1)
}
time.Sleep(time.Hour)
}
// 消费事务消息
func ConsumeTransaction() {
newPushConsumer, err := rocketmq.NewPushConsumer(
consumer.WithGroupName("test"),
consumer.WithNameServer([]string{"127.0.0.1:9876"}),
)
defer func(newPushConsumer rocketmq.PushConsumer) {
err := newPushConsumer.Shutdown()
if err != nil {
fmt.Printf("关闭consumer失败 err:%s \n", err)
os.Exit(1)
}
}(newPushConsumer)
if err != nil {
fmt.Printf("生成consumer失败 err:%s \n", err)
os.Exit(1)
}
err = newPushConsumer.Subscribe("TransactionTopic", consumer.MessageSelector{},
func(ctx context.Context, msgs ...*primitive.MessageExt) (consumer.ConsumeResult, error) {
for _, msg := range msgs {
nowStr := time.Now().Format("2006-01-02 15:04:05")
fmt.Printf("%s 读取到一条消息,消息内容: %s \n", nowStr, string(msg.Body))
}
return consumer.ConsumeSuccess, nil
},
)
if err != nil {
fmt.Printf("读取消息失败 err:%s \n", err)
os.Exit(1)
}
err = newPushConsumer.Start()
if err != nil {
fmt.Printf("启动consumer失败 err:%s \n", err)
os.Exit(1)
}
time.Sleep(time.Hour)
}
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