diff --git a/example/src/http_method.rs b/example/src/http_method.rs
index d757c92..029834a 100644
--- a/example/src/http_method.rs
+++ b/example/src/http_method.rs
@@ -8,8 +8,8 @@ struct User {
 }
 
 #[summer_boot::get("/hello")]
-pub async fn hello(mut _req: Request<()>) -> Result {
-    Ok(format!("Hello, Summer Boot").into())
+pub async fn hello(_req: Request<()>) -> Result {
+    Ok("Hello, Summer Boot".to_string().into())
 }
 
 #[summer_boot::post("/user/getUserInfo")]
diff --git a/example/src/lib.rs b/example/src/lib.rs
index 8b13789..b9e7325 100644
--- a/example/src/lib.rs
+++ b/example/src/lib.rs
@@ -1 +1,2 @@
-
+mod read_yml;
+mod log;
\ No newline at end of file
diff --git a/example/src/main.rs b/example/src/main.rs
index 6b74717..c768851 100644
--- a/example/src/main.rs
+++ b/example/src/main.rs
@@ -2,7 +2,6 @@ use serde::Deserialize;
 use summer_boot::{Request, Result};
 
 mod http_method;
-mod test;
 
 #[derive(Debug, Deserialize)]
 struct User {
diff --git a/example/src/read_yml.rs b/example/src/read_yml.rs
index 0ee877a..54df35f 100644
--- a/example/src/read_yml.rs
+++ b/example/src/read_yml.rs
@@ -110,4 +110,22 @@ mod tests {
             println!("mysqlConfig:{}", serde_json::to_string(&a.mysql).unwrap());
         });
     }
+
+    #[test]
+    fn load_env_file_test() {
+        //  let file = File::open("example/src/resources").expect("找不到文件");
+        let file_name = "application.yml";
+        let directories = vec!["src/resources", "spring-boot/src/resources", "dir3"];
+
+        for directory in directories {
+            let path = format!("{}/{}", directory, file_name);
+            let file_exists = std::fs::metadata(&path).is_ok();
+
+            if file_exists {
+                println!("文件 {} 存在于目录 {}", file_name, directory);
+            } else {
+                println!("文件 {} 不存在于目录 {}", file_name, directory);
+            }
+        }
+    }
 }
diff --git a/example/src/test.rs b/example/src/test.rs
deleted file mode 100644
index b6e65b0..0000000
--- a/example/src/test.rs
+++ /dev/null
@@ -1,17 +0,0 @@
-#[test]
-fn test() {
-    //  let file = File::open("example/src/resources").expect("找不到文件");
-    let file_name = "application.yml";
-    let directories = vec!["src/resources", "spring-boot/src/resources", "dir3"];
-
-    for directory in directories {
-        let path = format!("{}/{}", directory, file_name);
-        let file_exists = std::fs::metadata(&path).is_ok();
-
-        if file_exists {
-            println!("文件 {} 存在于目录 {}", file_name, directory);
-        } else {
-            println!("文件 {} 不存在于目录 {}", file_name, directory);
-        }
-    }
-}