add sms code

src/main/java/com/ttstd/videotablet/controller/HelloController.java

@@ -0,0 +1,45 @@
+package com.ttstd.videotablet.controller;
+
+import com.ttstd.videotablet.result.Result;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.StringRedisTemplate;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class HelloController {
+    //引入 redis
+    @Autowired
+    private StringRedisTemplate stringRedisTemplate;
+
+    @GetMapping("/")
+    public Result getMethodName() {
+        return Result.ok().message("Welcome to Yijiantong");
+    }
+
+    /**
+     * 存储
+     *
+     * @return
+     */
+    @PostMapping("/set")
+    public Result setRedis(@RequestParam(value = "username") String username) {
+        //存储 key-value 键值对: "username"-"jaychou"
+        stringRedisTemplate.opsForValue().set("username", username);
+        return Result.ok().message("redis 存储成功！");
+    }
+
+    /**
+     * 读取
+     *
+     * @return
+     */
+    @GetMapping("/get")
+    public Result getRedis(@RequestParam(value = "username") String username) {
+        //通过 key 值读取 value
+        String result = stringRedisTemplate.opsForValue().get(username);
+        return Result.ok().data("username", result);
+    }
+}