jdbc课时1~7

testJDBC/JDBCDemo1/JDBCDemo1.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="mysql-connector-java-8.0.11" level="project" />
+  </component>
+</module>

testJDBC/JDBCDemo1/src/com/msb/test1/TestJDBC.java

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+package com.msb.test1;
+
+import java.sql.*;
+
+public class TestJDBC {
+    public static void main(String[] args) {
+        Connection connection = null;
+        Statement statement = null;
+
+        try {
+            // 选择数据库
+//        Driver driver = new com.mysql.cj.jdbc.Driver();
+//        DriverManager.registerDriver(driver);
+            Class.forName("com.mysql.cj.jdbc.Driver");
+
+            // 建立连接
+            String url = "jdbc:mysql://127.0.0.1:3306/mydb?useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai";
+            String user = "root";
+            String password = "Fnst1234";
+            connection = DriverManager.getConnection(url, user, password);
+
+            // 执行sql
+            statement = connection.createStatement();
+            String sql = "insert into dept values (51, '助教部', '北京')";
+            int rows = statement.executeUpdate(sql);
+            System.out.println("影响行数据:" + rows);
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (statement != null) {
+                    statement.close();
+                }
+                if (connection != null) {
+                    connection.close();
+                }
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

testJDBC/testJDBC.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>