commit 792346d43d4bf999f16f6712d94ed56dfc1cf3d7
Author: lsy <lsy22@vip.qq.com>
Date:   Sat Nov 9 00:05:18 2024 +0800

    完成后端数据库的连接，后端配置文件的读，前端动态页面的选择

diff --git a/backend/Cargo.toml b/backend/Cargo.toml
new file mode 100644
index 0000000..0002f48
--- /dev/null
+++ b/backend/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "echoes"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+rocket = { version = "0.5", features = ["json"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+toml = "0.8.19"
+tokio = { version = "1", features = ["full"] }
+tokio-postgres = "0.7.12"
+once_cell = "1.20.2"
+async-trait = "0.1.83"
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diff --git a/backend/src/config.rs b/backend/src/config.rs
new file mode 100644
index 0000000..5b26a1a
--- /dev/null
+++ b/backend/src/config.rs
@@ -0,0 +1,22 @@
+use serde::Deserialize;
+
+#[derive(Deserialize)]
+pub struct Config {
+    pub info: Info,
+    pub database: Database,
+}
+
+#[derive(Deserialize)]
+pub struct Info {
+    pub install: bool,
+}
+
+#[derive(Deserialize)]
+pub struct Database {
+    pub ilk : String,
+    pub address : String,
+    pub prot : u32,
+    pub user : String,
+    pub password : String,
+    pub dbname : String,
+}
\ No newline at end of file
diff --git a/backend/src/config.toml b/backend/src/config.toml
new file mode 100644
index 0000000..8d73a7a
--- /dev/null
+++ b/backend/src/config.toml
@@ -0,0 +1,10 @@
+[info]
+install = false
+
+[database]
+ilk = "postgresql"
+address = "localhost"
+prot = 5432
+user = "postgres"
+password = "postgres"
+dbname = "echoes"
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diff --git a/backend/src/main.rs b/backend/src/main.rs
new file mode 100644
index 0000000..fe27177
--- /dev/null
+++ b/backend/src/main.rs
@@ -0,0 +1,61 @@
+mod sql;
+mod config;
+use rocket::{get, launch, routes, Route};
+use rocket::http::{ContentType, Status};
+use rocket::serde::{ Serialize};
+use rocket::response::status;
+use std::sync::{Arc, Mutex};
+use once_cell::sync::Lazy;
+use rocket::serde::json::Json;
+use tokio::sync::Mutex as TokioMutex;
+use tokio_postgres::types::ToSql;
+
+// 获取数据库连接
+static GLOBAL_SQL: Lazy<Arc<TokioMutex<Option<Box<dyn sql::Database >>>>>
+= Lazy::new(|| Arc::new(TokioMutex::new(None)));
+
+// 获取数据库连接
+async fn initialize_sql() {
+    let sql_instance = sql::loading().await;
+    let mut lock = GLOBAL_SQL.lock().await;
+    *lock = sql_instance;
+}
+
+// 网站初始化
+#[get("/install")]
+fn install() -> status::Custom<()> {
+    status::Custom(Status::Ok, ())
+}
+// sql查询
+#[derive(Serialize)]
+struct SSql{
+    key:String,
+    value:String,
+}
+#[get("/sql")]
+async fn ssql() -> status::Custom<Json<Vec<SSql>>> {
+    let sql_instance=GLOBAL_SQL.lock().await;
+    let sql =sql_instance.as_ref().unwrap();
+    let query = "SELECT * FROM info";
+    let params: &[&(dyn ToSql + Sync)] = &[];
+    let data = sql.query(query, params).await.expect("查询数据失败");
+    let mut vec = Vec::new();
+    for row in data {
+        let key=row.get(0);
+        let value=row.get(1);
+        vec.push(SSql{
+            key,
+            value,
+        });
+    }
+    status::Custom(Status::Ok, Json(vec))
+}
+
+
+
+#[launch]
+async fn rocket() -> _ {
+    initialize_sql().await;
+    rocket::build()
+        .mount("/api", routes![install,ssql])
+}
diff --git a/backend/src/sql/mod.rs b/backend/src/sql/mod.rs
new file mode 100644
index 0000000..8f3df0d
--- /dev/null
+++ b/backend/src/sql/mod.rs
@@ -0,0 +1,53 @@
+mod postgresql;
+use std::fs;
+use tokio_postgres::{Error, Row};
+use toml;
+use crate::config::Config;
+use async_trait::async_trait;
+
+// 所有数据库类型
+#[async_trait]
+pub trait Database: Send + Sync {
+     async fn query(&self,
+             query: &str,
+             params: &[&(dyn tokio_postgres::types::ToSql + Sync)])
+             -> Result<Vec<Row>, Error>;
+    async fn execute(
+        &self,
+        data: &str,
+        params: &[&(dyn tokio_postgres::types::ToSql + Sync)],
+    )
+        -> Result<u64, Error>;
+}
+
+
+// 加载对应数据库
+pub async fn loading() -> Option<Box<dyn Database>> {
+    let config_string = fs::read_to_string("./src/config.toml")
+        .expect("Could not load config file");
+    let config: Config = toml::de::from_str(config_string.as_str()).expect("Could not parse config");
+    let address = config.database.address;
+    let port = config.database.prot;
+    let user = config.database.user;
+    let password = config.database.password;
+    let dbname = config.database.dbname;
+    let sql_instance: Box<dyn Database>;
+
+    match config.database.ilk.as_str() {
+        "postgresql" => {
+            let sql = postgresql::connect(address, port, user, password, dbname).await;
+            match sql {
+                Ok(conn) => {
+                    sql_instance = Box::new(conn);
+                }
+                Err(e) => {
+                    println!("Database connection failed {}", e);
+                    return None;
+                }
+            }
+
+        }
+        _ => { return None }
+    };
+    Some(sql_instance)
+}
\ No newline at end of file
diff --git a/backend/src/sql/postgresql.rs b/backend/src/sql/postgresql.rs
new file mode 100644
index 0000000..e0f67a9
--- /dev/null
+++ b/backend/src/sql/postgresql.rs
@@ -0,0 +1,65 @@
+use tokio_postgres::{NoTls, Error, Row, Client, Connection, Socket};
+use crate::sql;
+use async_trait::async_trait;
+use tokio_postgres::tls::NoTlsStream;
+
+pub struct Postgresql {
+    pub client: tokio_postgres::Client,
+}
+
+pub async fn connect(
+    address: String,
+    port: u32,
+    user: String,
+    password: String,
+    dbname: String,
+) -> Result<Postgresql, Error> {
+    let connection_str = format!(
+        "host={} port={} user={} password={} dbname={}",
+        address, port, user, password, dbname
+    );
+
+    let client:Client;
+    let connection:Connection<Socket, NoTlsStream>;
+    let link = tokio_postgres::connect(&connection_str, NoTls).await;
+    match link {
+        Ok((clie,conne)) => {
+            client = clie;
+            connection = conne;
+        }
+        Err(err) => {
+            println!("Failed to connect to postgresql: {}", err);
+            return Err(err);
+        }
+    }
+
+    tokio::spawn(async move {
+        if let Err(e) = connection.await {
+            eprintln!("postgresql connection error: {}", e);
+        }
+    });
+
+    Ok(Postgresql { client })
+}
+
+impl Postgresql {
+
+}
+#[async_trait]
+impl sql::Database for Postgresql {
+    async fn query(&self, query: & str,
+                       params: &[&(dyn tokio_postgres::types::ToSql + Sync)]
+    ) -> Result<Vec<Row>, Error> {
+        let rows = self.client.query(query, params).await?;
+        Ok(rows)
+    }
+
+    async fn execute(
+        &self,
+        data: &str,
+        params: &[&(dyn tokio_postgres::types::ToSql + Sync)],
+    ) -> Result<u64, Error> {
+        let rows_affected = self.client.execute(data, params).await?;
+        Ok(rows_affected)
+    }
+}
diff --git a/frontend/package.json b/frontend/package.json
new file mode 100644
index 0000000..4a49cea
--- /dev/null
+++ b/frontend/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "echoes",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
+    "react-router-dom": "^6.28.0"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.13.0",
+    "@types/react": "^18.3.12",
+    "@types/react-dom": "^18.3.1",
+    "@vitejs/plugin-react": "^4.3.3",
+    "eslint": "^9.13.0",
+    "eslint-plugin-react-hooks": "^5.0.0",
+    "eslint-plugin-react-refresh": "^0.4.14",
+    "globals": "^15.11.0",
+    "typescript": "~5.6.2",
+    "typescript-eslint": "^8.11.0",
+    "vite": "^5.4.10"
+  }
+}
diff --git a/frontend/src/install/page.tsx b/frontend/src/install/page.tsx
new file mode 100644
index 0000000..0cd47df
--- /dev/null
+++ b/frontend/src/install/page.tsx
@@ -0,0 +1,8 @@
+import react from 'react';
+const page:react.FC=()=>{
+    return (
+        <div>
+        安装
+    </div>)
+}
+export default page;
\ No newline at end of file
diff --git a/frontend/src/main.css b/frontend/src/main.css
new file mode 100644
index 0000000..bd6213e
--- /dev/null
+++ b/frontend/src/main.css
@@ -0,0 +1,3 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
\ No newline at end of file
diff --git a/frontend/src/main.tsx b/frontend/src/main.tsx
new file mode 100644
index 0000000..c831684
--- /dev/null
+++ b/frontend/src/main.tsx
@@ -0,0 +1,24 @@
+import * as React from "react";
+import "./main.css"
+import DynamicPage from "./page/page.tsx"
+import ReactDOM from 'react-dom/client'
+import {createContext} from "react";
+
+export const serverAddressContext=createContext("localhost:8080")
+// 动态路由
+const RouterListener: React.FC = () => {
+    let pathname = location.pathname.split("/");
+    console.log(pathname)
+    return (
+        <serverAddressContext.Provider value={"localhost:8080"}>
+            <DynamicPage pageName="home"/>
+        </serverAddressContext.Provider>
+    )
+}
+
+
+ReactDOM.createRoot(document.getElementById("root")).render(
+    <React.StrictMode>
+        <RouterListener/>
+    </React.StrictMode>
+);
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diff --git a/frontend/src/page/page.tsx b/frontend/src/page/page.tsx
new file mode 100644
index 0000000..5f0d35d
--- /dev/null
+++ b/frontend/src/page/page.tsx
@@ -0,0 +1,36 @@
+import React from "react";
+const THEMEPATH= "../../themes"
+import {serverAddressContext} from "../main.tsx";
+// 动态获取当前主题
+const getCurrentTheme = async (): Promise<string> => {
+    return new Promise<string>((resolve) => {
+        resolve("default");
+    })
+}
+
+// 获取页面
+const loadPage = (theme: string, pageName: string) => {
+    return import(/* @vite-ignore */`${THEMEPATH}/${theme}/${pageName}/page`).catch(() => import((/* @vite-ignore */`${THEMEPATH}/default/page/page`)))
+}
+
+// 动态加载页面
+const DynamicPage: React.FC<{ pageName: string }> = ({pageName}) => {
+    const serverAddress = React.useContext(serverAddressContext)
+    console.log(serverAddress)
+    const [Page, setPage] = React.useState<React.ComponentType | null>(null);
+    const [theme, setTheme] = React.useState<string>("");
+    React.useEffect(() => {
+        getCurrentTheme().then((theme) => {
+            setTheme(theme);
+            loadPage(theme, pageName).then((module) => {
+                setPage(() => module.default);
+            });
+        })
+    })
+    if(!Page){
+        return <div>loading...</div>;
+    }
+
+    return <Page/>;
+}
+export default DynamicPage;
\ No newline at end of file
diff --git a/frontend/themes/default/404/page.tsx b/frontend/themes/default/404/page.tsx
new file mode 100644
index 0000000..8d56103
--- /dev/null
+++ b/frontend/themes/default/404/page.tsx
@@ -0,0 +1,7 @@
+import React from "react";
+const Page: React.FC = () => {
+    return <div>404</div>;
+};
+
+
+export default Page;
\ No newline at end of file
diff --git a/frontend/themes/default/page/page.tsx b/frontend/themes/default/page/page.tsx
new file mode 100644
index 0000000..af39a9a
--- /dev/null
+++ b/frontend/themes/default/page/page.tsx
@@ -0,0 +1,5 @@
+import React from "react";
+const Page: React.FC = () => {
+    return <div>主页</div>;
+};
+export default Page;
\ No newline at end of file