From 6574d2519ece124b98c705fcc9a0c24007a8bcb9 Mon Sep 17 00:00:00 2001
From: OCEAN <1010331798@qq.com>
Date: Wed, 26 Mar 2025 15:30:08 +0800
Subject: [PATCH] =?UTF-8?q?rust=E7=A7=B0=E9=87=8D=E5=B9=B6=E5=8F=91?=
 =?UTF-8?q?=E5=B8=83=E5=88=B0mqtt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitignore  |   1 +
 Cargo.lock  | 754 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |  11 +
 src/main.rs | 123 +++++++++
 4 files changed, 889 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
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index 0000000..ea8c4bf
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diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..3b9329b
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..20d3c42
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "weight_reader"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+serialport = "4.2.2"
+anyhow = "1.0"
+rumqttc = "0.23"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..0ad3ffe
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,123 @@
+use anyhow::{Context, Result};
+use rumqttc::{Client, MqttOptions, QoS};
+use serde::{Serialize, Deserialize};
+use serde_json;
+use std::io::{self, Read};
+use std::time::Duration;
+use std::thread;
+use serialport;
+
+#[derive(Serialize, Deserialize)]
+struct WeightData {
+    weight: String,
+    timestamp: u64,
+}
+
+
+
+fn main() -> Result<()> {
+    // 创建 MQTT 客户端
+   // let mut mqttopts = MqttOptions::new("weight_reader", "192.168.0.100", 1883);
+   let mut mqttopts = MqttOptions::new("weight_reader", "112.33.111.160", 1883);
+    mqttopts.set_keep_alive(Duration::from_secs(5));
+    mqttopts.set_credentials("auseft", "1q2w3E**");
+    let (mut client, mut connection) = Client::new(mqttopts, 10);
+
+    // 在单独的线程中处理 MQTT 连接
+    thread::spawn(move || {
+        for notification in connection.iter() {
+            match notification {
+                Ok(notification) => {
+                    // if(!notification.contains("PingRe")) {
+                    //     println!("MQTT事件: {:?}", notification);
+                    // }
+                }
+                Err(e) => {
+                    eprintln!("MQTT连接错误: {:?}", e);
+                    break;
+                }
+            }
+        }
+    });
+
+    // List available ports
+    let ports = serialport::available_ports().context("未找到串口设备!")?;
+    
+    if ports.is_empty() {
+        println!("错误：没有找到任何串口设备");
+        return Ok(());
+    }
+
+    println!("可用的串口设备:");
+    for (i, port) in ports.iter().enumerate() {
+        println!("{}: {}", i, port.port_name);
+    }
+
+    // Read port selection from user
+    let port_idx = loop {
+        println!("请输入要使用的串口编号 (0-{}):", ports.len() - 1);
+        let mut input = String::new();
+        io::stdin().read_line(&mut input)?;
+        
+        match input.trim().parse::<usize>() {
+            Ok(idx) if idx < ports.len() => break idx,
+            Ok(_) => println!("错误：输入的编号超出范围，请重新输入"),
+            Err(_) => println!("错误：请输入有效的数字"),
+        }
+    };
+
+    let port_name = &ports[port_idx].port_name;
+    println!("正在尝试打开串口 {}...", port_name);
+
+    // Configure and open the serial port
+    let mut port = serialport::new(port_name, 9600)
+        .timeout(Duration::from_millis(1000))
+        .open()
+        .with_context(|| format!("无法打开串口 {}", port_name))?;
+
+    println!("成功打开串口 {}!", port_name);
+    println!("正在读取数据... (按 Ctrl+C 退出)");
+
+    // Read data continuously
+    let mut serial_buf: Vec<u8> = vec![0; 1000];
+    loop {
+        match port.read(serial_buf.as_mut_slice()) {
+            Ok(t) => {
+                let data = String::from_utf8_lossy(&serial_buf[..t]);
+                let trimmed_data = data.trim();
+                if !trimmed_data.is_empty() {
+                    println!("收到数据: {}", trimmed_data);
+                    
+                    // 创建权重数据结构
+                    let weight_data = WeightData {
+                        weight: trimmed_data.to_string(),
+                        timestamp: std::time::SystemTime::now()
+                            .duration_since(std::time::UNIX_EPOCH)
+                            .unwrap()
+                            .as_secs(),
+                    };
+
+                    // 序列化数据
+                    let json_data = serde_json::to_string(&weight_data)?;
+
+                    // 发布到 MQTT
+                    if let Err(e) = client.publish("weight/data", QoS::AtLeastOnce, false, json_data) {
+                        eprintln!("MQTT发布错误: {:?}", e);
+                    } else {
+                        println!("成功发送数据到MQTT");
+                    }
+                }
+            }
+            Err(ref e) if e.kind() == io::ErrorKind::TimedOut => {
+                // Timeout is not an error, just continue
+                continue;
+            }
+            Err(e) => {
+                eprintln!("发生错误: {}", e);
+                break;
+            }
+        }
+    }
+
+    Ok(())
+}