tauri配置全局变量

1. vite配置.env

VITE_TEST_URL_DEMO = 'http://localhost:8888'

2. tauri 启动参数

• package.json 添加配置

"tauri:dev:mac": "tauri dev --config src-tauri/tauri.apple.conf.json -- -- test_url_demo=http://localhost:8888",
"tauri:dev:mac:v2": "tauri dev --config src-tauri/tauri.apple.conf.json -- -- --test_url_demo http://localhost:8888",

• main.rs 利用 Tauri 的 State 管理器，创建一个共享的全局变量

// State 管理器
pub struct AppState {
    test_url_demo: Mutex<String>,
}
...
// 设置默认值
tauri::Builder::default()
        .manage(AppState {
            test_url_demo: Mutex::new("https://localhost:8080".to_string()),
        })
...
builder.setup(|app| {
	let args: Vec<String> = std::env::args().collect();
	// ["target/debug/desktop-demo", "--test_url_demo", "http://localhost:8888"]
	// ["target/debug/desktop-demo", "test_url_demo=http://localhost:8888"]
	println!("----> args: {:?}", args);
	let mut arg_test_url_demo = None;
	for i in 0..args.len() {
	    let arg = &args[i];
	    if arg.starts_with("test_url_demo=") {
	        arg_test_url_demo = Some(arg.trim_start_matches("test_url_demo=").to_string());
	        break;
	    } else if arg == "--test_url_demo" && i + 1 < args.len() {
	        arg_test_url_demo = Some(args[i + 1].clone());
	        break;
	    }
	}
	println!("----> arg_test_url_demo: {:?}", arg_test_url_demo);
	if let Some(value) = arg_test_url_demo {
	    let app_state = app.state::<AppState>();
	    let mut test_url_demo = app_state.test_url_demo.lock().unwrap();
	    println!("----> test_url_demo before: {:?}", test_url_demo);
	    *test_url_demo = value.clone();
	    println!("----> test_url_demo after: {:?}", test_url_demo);
	} else {
	    println!("----> test_url_demo parameter not found");
	}
})

• 获取test_url_demo

use crate::AppState;

pub async fn check(
    app_handle: AppHandle
) ->Result<String, String> {
	let app_state = app_handle.state::<AppState>();
    let test_url_demo = app_state.test_url_demo.lock().unwrap().clone();
    println!("----> test_url_demo in other file: {}", test_url_demo);
...
}