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mysql 安卓訪問(wèn)

MySQL安卓訪問(wèn)咋整?今天小編來(lái)給大家介紹一下!

首先,我們需要先在MySQL中建立一個(gè)數(shù)據(jù)庫(kù)和一張表,假設(shè)我們的數(shù)據(jù)庫(kù)為“test”,表為“student”,并且在表中插入了一些數(shù)據(jù)。

CREATE DATABASE test;
USE test;
CREATE TABLE student (
id INT(10) PRIMARY KEY,
name VARCHAR(20),
age INT(3)
);
INSERT INTO student (id, name, age) VALUES (1, '小明', 20);
INSERT INTO student (id, name, age) VALUES (2, '小紅', 19);
INSERT INTO student (id, name, age) VALUES (3, '小剛', 22);
INSERT INTO student (id, name, age) VALUES (4, '小麗', 21);

接下來(lái),我們需要在安卓項(xiàng)目中添加MySQL連接驅(qū)動(dòng),可以去官網(wǎng)下載,或者使用Maven依賴。

implementation 'mysql:mysql-connector-java:5.1.47'

然后,在代碼中連接MySQL數(shù)據(jù)庫(kù),查詢數(shù)據(jù)并對(duì)數(shù)據(jù)進(jìn)行處理。

private void connectMySQL() {
try {
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://localhost:3306/test";
String username = "root";
String password = "123456";
Connection conn = DriverManager.getConnection(url, username, password);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM student");
while (rs.next()) {
int id = rs.getInt(1);
String name = rs.getString(2);
int age = rs.getInt(3);
Log.d(TAG, "id=" + id + ", name=" + name + ", age=" + age);
}
rs.close();
stmt.close();
conn.close();
} catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}
}

以上就是MySQL安卓訪問(wèn)的基本流程,當(dāng)然還有更復(fù)雜的操作,可以自行查閱相關(guān)資料。