From 3d405d75cfc06c8ab2f5d196ee9c09774620c0e3 Mon Sep 17 00:00:00 2001
From: Wendal <wendal1985@gmail.com>
Date: Sun, 26 May 2019 11:35:13 +0800
Subject: [PATCH] =?UTF-8?q?add:=20=E7=BB=9F=E8=AE=A1=E7=94=A8=E6=88=B7?=
 =?UTF-8?q?=E6=80=BB=E6=95=B0=E7=9A=84=E7=A5=9E=E4=BB=A3=E7=A0=81?=
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---
 java/CountUserTable.java | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 java/CountUserTable.java

diff --git a/java/CountUserTable.java b/java/CountUserTable.java
new file mode 100644
index 0000000..5a43dfa
--- /dev/null
+++ b/java/CountUserTable.java
@@ -0,0 +1,22 @@
+package com.gitee.bullshit.code;
+
+import org.nutz.dao.*;
+import org.nutz.ioc.loader.annotation.*;
+import junit.framework.*;
+
+/**
+  统计用户总数,来源于N年前某个用户抱怨执行效率低,贴出类似逻辑的代码.
+  @author wendal
+*/
+@IocBean
+public class CountUserTable {
+
+    @Inject Dao dao;
+
+    @Test
+    public void test_user_count() {
+        // 取出全部用户对象(dao.query返回List<User>),然后取list大小就可以啦,是不是很机智
+        int count = dao.query(User.class, null).size();
+        System.out.println("用户总数是" + count);
+    } 
+}
\ No newline at end of file
-- 
Gitee