add .

Author: litongjava

docs/zh/99_案例/03.md

@@ -1,6 +1,6 @@
 # tio-boot 案例-文件上传和下载
 
-添加依赖
+## 添加依赖
 
 ```
 <properties>
@@ -100,6 +100,8 @@
 </profiles>
 ```
 
+## 数据表
+
 创建一张数据表,保持上传的数据
 
 ```sql
@@ -112,7 +114,8 @@ CREATE TABLE "sys_upload_file" (
 );
 ```
 
-配置文件
+## 配置文件
+
 app.properties
 
 ```properties
@@ -125,7 +128,7 @@ jdbc.showSql=true
 jdbc.validationQuery=select 1
 ```
 
-启动类
+## 启动类
 
 ```java
 package com.litongjava.tio.boo.demo.file;
@@ -145,7 +148,7 @@ public class TioBootFileApp {
 
 ```
 
-配置类
+## 配置类
 
 ```java
 package com.litongjava.tio.boo.demo.file.config;
@@ -234,7 +237,7 @@ public class TableToJsonConfig {
 }
 ```
 
-实体类
+## 实体类
 
 ```
 package com.litongjava.tio.boo.demo.file.model;
@@ -257,7 +260,7 @@ public class FileSaveResult {
 }
 ```
 
-常量类
+## 常量类
 
 - UPlOAD_FOLDER_NAME 保持文件上传路径
 
@@ -270,7 +273,7 @@ public interface AppConstants {
 
 ```
 
-service
+## service
 
 ```java
 package com.litongjava.tio.boo.demo.file.services;
@@ -360,7 +363,7 @@ public class FileService {
 
 ```
 
-controller
+## controller
 
 ```java
 package com.litongjava.tio.boo.demo.file.controller;
@@ -462,7 +465,117 @@ curl --location --request POST 'http://localhost/file/upload' \
 }
 ```
 
-下载
+- 下载文件 http://localhost/file/download/6632a4ba-ae03-4f05-adce-de6acdd5c560
+
+## RequestHanlder 版本
+
+tio-boot 的 controller 因为使用了反射,性能会低一些.如果想要提高性能,推荐使用 tio-boot request handler,使用方式如下
+
+### 添加 Handler
+
+```
+package com.litongjava.file.server.requesthandler;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import com.litongjava.file.server.model.FileSaveResult;
+import com.litongjava.file.server.services.FileService;
+import com.litongjava.jfinal.aop.annotation.AAutowired;
+import com.litongjava.tio.http.common.HttpRequest;
+import com.litongjava.tio.http.common.HttpResponse;
+import com.litongjava.tio.http.common.UploadFile;
+import com.litongjava.tio.http.server.util.Resps;
+import com.litongjava.tio.utils.resp.RespVo;
+
+import lombok.Cleanup;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class FileRequestHanlder {
+  @AAutowired
+  private FileService fileService;
+
+  public HttpResponse upload(HttpRequest request) {
+    UploadFile file = request.getUploadFile("file");
+    RespVo respVo;
+    if (file != null) {
+      String name = file.getName();
+      byte[] fileData = file.getData();
+      log.info("upload file size:{}", fileData.length);
+      // save file
+      FileSaveResult fileSaveResult = fileService.save(name, fileData);
+      fileSaveResult.setFile(null);
+
+      log.info("save file finished");
+      respVo = RespVo.ok(fileSaveResult);
+
+    } else {
+      respVo = RespVo.fail("fail").code(-1);
+    }
+
+    return Resps.json(request, respVo);
+  }
+
+  public HttpResponse download(HttpRequest request) {
+    String id = request.getParam("id");
+    log.info("id:{}", id);
+    File file = fileService.getUploadFile(id);
+    int available;
+    try {
+      @Cleanup
+      InputStream inputStream = new FileInputStream(file);
+      available = inputStream.available();
+      byte[] fileBytes = new byte[available];
+      inputStream.read(fileBytes, 0, available);
+      // String contentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document; charset=utf-8";
+      String contentType = "";
+      HttpResponse response = Resps.bytesWithContentType(request, fileBytes, contentType);
+      return response;
+    } catch (IOException e) {
+      e.printStackTrace();
+      return Resps.json(request, RespVo.fail("Error generating captcha"));
+    }
+  }
+}
+
+```
+
+### 使用配置类配置 RequestHanlder
+
+```
+package com.litongjava.file.server.config;
+
+import com.litongjava.file.server.requesthandler.FileRequestHanlder;
+import com.litongjava.jfinal.aop.Aop;
+import com.litongjava.jfinal.aop.annotation.AInitialization;
+import com.litongjava.jfinal.aop.annotation.BeforeStartConfiguration;
+import com.litongjava.tio.boot.server.TioBootServer;
+import com.litongjava.tio.http.server.handler.SimpleHttpRoutes;
+
+@BeforeStartConfiguration
+public class HttpServerRequestHanlderConfig {
+
+  @AInitialization
+  public void httpRoutes() {
+
+    // 创建simpleHttpRoutes
+    SimpleHttpRoutes simpleHttpRoutes = new SimpleHttpRoutes();
+    // 创建controller
+    FileRequestHanlder asrSubmitRequestHanlder = Aop.get(FileRequestHanlder.class);
+
+    // 添加action
+    simpleHttpRoutes.add("/upload", asrSubmitRequestHanlder::upload);
+    simpleHttpRoutes.add("/download", asrSubmitRequestHanlder::download);
+
+    // 将simpleHttpRoutes添加到TioBootServer
+    TioBootServer.me().setHttpRoutes(simpleHttpRoutes);
+  }
+
+}
+```
 
-- http://localhost/file/download/6632a4ba-ae03-4f05-adce-de6acdd5c560
-- 下载文件
+- 开源地址
+  https://github.com/litongjava/tio-boot-file-server