From 75609c7c34fa62abed6174ba80fc606728dbdf5c Mon Sep 17 00:00:00 2001
From: fly6516 <fly6516@outlook.com>
Date: Wed, 26 Mar 2025 11:19:42 +0800
Subject: [PATCH] =?UTF-8?q?Reapply=20"feat:=20=E6=B7=BB=E5=8A=A0=20TableEx?=
 =?UTF-8?q?ist=20=E7=B1=BB=E7=94=A8=E4=BA=8E=E6=A3=80=E6=9F=A5=20HBase=20?=
 =?UTF-8?q?=E8=A1=A8=E6=98=AF=E5=90=A6=E5=AD=98=E5=9C=A8"?=
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This reverts commit ac8bc7357da9d6bc2b0868c0fe7afdbd0b16cdb1.
---
 src/main/java/TableExist.java | 52 +++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 src/main/java/TableExist.java

diff --git a/src/main/java/TableExist.java b/src/main/java/TableExist.java
new file mode 100644
index 0000000..13ade1c
--- /dev/null
+++ b/src/main/java/TableExist.java
@@ -0,0 +1,52 @@
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.*;
+import org.apache.hadoop.hbase.client.*;
+import java.io.IOException;
+import java.util.Scanner;
+public class TableExist{
+    public static Configuration configuration;
+    public static Connection connection;
+    public static Admin admin;
+    public static void main(String[] args)throws IOException{
+
+        Scanner sc = new Scanner(System.in);
+        System.out.print("tableName:");
+        String tableName = sc.next();
+        init();
+
+        TableName tn = TableName.valueOf(tableName);
+        if(admin.tableExists(tn)) {
+            System.out.println("table " + tableName + " does exist!");
+        } else {
+            System.out.println("table " + tableName + " don't exist!");
+        }
+        close();
+    }
+    //建立连接
+    public static void init(){
+        //根据 hbase-site.xml文件初始化Configuration 对象
+        configuration  = HBaseConfiguration.create();
+        try{
+            //根据 Configuration对象初始化Connection 对象
+            connection = ConnectionFactory.createConnection(configuration);
+            //获取Admin 对象实例
+            admin = connection.getAdmin();
+        }catch (IOException e){
+            e.printStackTrace();
+        }
+        System.out.println("Connect to HBase successfully!");
+    }
+    //关闭连接
+    public static void close(){
+        try{
+            if(admin != null){
+                admin.close();
+            }
+            if(null != connection){
+                connection.close();
+            }
+        }catch (IOException e){
+            e.printStackTrace();
+        }
+    }
+}
\ No newline at end of file