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1.找到必要三个 DLL
- Mono.Data.Sqlite.dll
- System.Data.dll
- sqlite3.dll
上面两个dll可在本地unity安装目次找到:
- C:\Program Files\Unity\Hub\Editor\2022.3.xxf1c1\Editor\Data\MonoBleedingEdge\lib\mono\unityjit-win32
复制代码 下面dll可在sqlite官网下载到:
- https://www.sqlite.org/download.html
复制代码
2.将以上三个dll放入unity的里面的Plugins里面
3.测试代码:
- using UnityEngine;
- using Mono.Data.Sqlite;
- using System.Data;
- public class SQLiteTest : MonoBehaviour
- {
- private string dbPath;
- void Start()
- {
- // SQLite 数据库的路径
- dbPath = "URI=file:" + Application.streamingAssetsPath + "/example.db";
- Debug.Log("Database Path: " + dbPath);
- CreateTable();
- InsertData("TestKey", "TestValue");
- string value = GetData("TestKey");
- Debug.Log("Retrieved Value: " + value);
- }
- private void CreateTable()
- {
- using (IDbConnection dbConnection = new SqliteConnection(dbPath))
- {
- dbConnection.Open();
- using (IDbCommand command = dbConnection.CreateCommand())
- {
- command.CommandText = "CREATE TABLE IF NOT EXISTS MyTable (key TEXT PRIMARY KEY, value TEXT)";
- command.ExecuteNonQuery();
- }
- }
- }
- private void InsertData(string key, string value)
- {
- using (IDbConnection dbConnection = new SqliteConnection(dbPath))
- {
- dbConnection.Open();
- using (IDbCommand command = dbConnection.CreateCommand())
- {
- command.CommandText = "INSERT OR REPLACE INTO MyTable (key, value) VALUES (@key, @value)";
- command.Parameters.Add(new SqliteParameter("@key", key));
- command.Parameters.Add(new SqliteParameter("@value", value));
- command.ExecuteNonQuery();
- }
- }
- }
- private string GetData(string key)
- {
- using (IDbConnection dbConnection = new SqliteConnection(dbPath))
- {
- dbConnection.Open();
- using (IDbCommand command = dbConnection.CreateCommand())
- {
- command.CommandText = "SELECT value FROM MyTable WHERE key = @key";
- command.Parameters.Add(new SqliteParameter("@key", key));
- using (IDataReader reader = command.ExecuteReader())
- {
- if (reader.Read())
- {
- return reader.GetString(0);
- }
- }
- }
- }
- return null;
- }
- private void Update()
- {
- if (Input.GetKeyDown(KeyCode.T))
- {
- Debug.Log("写入数据");
- InsertData("名字", "蜡笔小新");
- InsertData("年龄", "5岁");
- InsertData("职业", "幼儿园学生");
- InsertData("爱好", "大姐姐");
- }
- if (Input.GetKeyDown(KeyCode.Space))
- {
- Debug.Log(GetData("名字"));
- Debug.Log(GetData("年龄"));
- Debug.Log(GetData("职业"));
- Debug.Log(GetData("爱好"));
- }
- }
- }
复制代码

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