add logger

Cargo.toml

@@ -6,6 +6,8 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+env_logger = "0.11.3"
+log = "0.4.22"
 sea-orm = {version = "0.12.15",features = [ "sqlx-sqlite", "runtime-tokio-native-tls", "macros" ,"debug-print"] }
 # serde = "1.0.204"
 # serde_json = "1.0.120"

src/main.rs

@@ -1,6 +1,6 @@
 use std::error::Error;
-use sea_orm::{ ActiveModelTrait, ActiveValue};
 use start_db::Starter;
+use log::{error, info};
 // use serde_json::json;
 use tokio;
 
@@ -9,20 +9,17 @@ pub mod start_db;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn Error>> {
-    let db_info = Starter::connect().await?;
+    env_logger::init();
+    println!("The program is starting.\nIf you want to see the log info,please set env RUST_LOG=info");
+    info!("DataBase is starting");
+    let db_info = Starter::connect("sqlite://test.db?mode=rwc").await?;
+
     db_info.create_table().await.unwrap_or_else(|e: Box<dyn Error>|{
-        println!("The table have been created.\nDon't care this Error:{}",e);
+        info!("The table have been created. Don't care this Error!!!!!:{}",e);
+    });
+    word_entity::tests::insert_tests_value(&db_info.conn).await.unwrap_or_else(|e|{
+        error!("Cannot write data into database.The details are as follows:\n{}",e);
     });
-    
-    let insert_word = word_entity::ActiveModel{
-        id:ActiveValue::not_set(),
-        bsm: ActiveValue::set("test".to_string()),
-        hz: ActiveValue::set("test".to_string()),
-        py_js: ActiveValue::set("test".to_string()),
-    };
-
-    println!("inserting tests into words table in tests.db");
-    insert_word.insert(&db_info.db).await?;
     
     Ok(())
 }

src/start_db.rs

@@ -3,20 +3,20 @@ use std::error::Error;
 use sea_orm::Schema;
 
 pub struct Starter {
-    pub db: DatabaseConnection,
+    pub conn: DatabaseConnection,
 }
 impl Starter {
-    pub async fn connect() -> Result<Self, Box<dyn Error>> {
+    pub async fn connect(db_url:&str) -> Result<Self, Box<dyn Error>> {
-        let opt: ConnectOptions = ConnectOptions::new("sqlite://test.db?mode=rwc");
+        let opt: ConnectOptions = ConnectOptions::new(db_url);
-        let db_new: DatabaseConnection = Database::connect(opt).await?;
+        let conn_new: DatabaseConnection = Database::connect(opt).await?;
         
-        Ok(Starter{db:db_new})
+        Ok(Starter{conn:conn_new})
     }
     pub async fn create_table(&self) -> Result<(), Box<dyn Error>> {
-        let backend = self.db.get_database_backend();
+        let backend = self.conn.get_database_backend();
         let schema = Schema::new(backend);
         let table_create_statement = schema.create_table_from_entity(super::word_entity::Entity);
-        let table_create_result = self.db.execute(backend.build(&table_create_statement)).await?;
+        let table_create_result = self.conn.execute(backend.build(&table_create_statement)).await?;
         println!("{:?}",table_create_result);
         Ok(())
     }

src/word_entity.rs

@@ -1,4 +1,5 @@
 use sea_orm::entity::prelude::*;
+pub mod tests;
 
 #[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
 #[sea_orm(table_name = "words")]

src/word_entity/tests.rs

@@ -0,0 +1,19 @@
+use std::error::Error;
+use log::info;
+use sea_orm::{ActiveModelTrait, ActiveValue, DatabaseConnection};
+use super::ActiveModel;
+
+
+pub async fn insert_tests_value(conn:&DatabaseConnection)->Result<(),Box<dyn Error>>{
+    let insert_word = ActiveModel{
+        id:ActiveValue::not_set(),
+        bsm: ActiveValue::set("test".to_string()),
+        hz: ActiveValue::set("test".to_string()),
+        py_js: ActiveValue::set("test".to_string()),
+    };
+
+    info!("Inserting tests into words table in tests.db");
+    insert_word.insert(conn).await?;
+    info!("Insert done.Test done");
+    Ok(())
+}