sqlite3 jdbc 只读 无效方法:

1. “jdbc:sqlite:/bal/work_home/fn.db?readonly=true”
   导致 fn.db?readonly=true 会被当成是数据库文件名

2. “jdbc:sqlite:/bal/work_home/fn.db?jdbc.explicit_readonly=true”
   参考了pragmaReadOnly

sqlite3 jdbc 只读 有效方法 举例

package com.zzz;import com.zzz.sqlite3db.fn.entity.Func;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.sqlite.SQLiteConfig;
import org.sqlite.SQLiteDataSource;import java.util.List;
import java.util.Properties;import static com.zzz.utils.JavaVersionUtil.assertJavaVer1_8;public class SpringJdbcSqlite3Demo {public static void main(String[] args){assertJavaVer1_8();DriverManagerDataSource dataSource = new DriverManagerDataSource();dataSource.setDriverClassName(org.sqlite.JDBC.class.getCanonicalName());dataSource.setUrl("jdbc:sqlite:/bal/work_home/fn.db");dataSource.setUsername("");dataSource.setPassword("");// sqlite3 jdbc  只读模式打开了sqlite数据库Properties properties=new Properties();properties.setProperty("open_mode","1");dataSource.setConnectionProperties(properties);JdbcTemplate jdbcTemplate=new JdbcTemplate(dataSource);//正常执行Integer fnAbsLctId0=jdbcTemplate.queryForObject("select fnAbsLctId from tbl_Func limit 1", Integer.class);//正常查询到10条记录List<Func> funcList = jdbcTemplate.query("select * from tbl_Func limit 10", new BeanPropertyRowMapper<>(Func.class));///**sqlite3 jdbc  只读模式打开了sqlite数据库当执行   delete 语句时 报错如下:Caused by: org.sqlite.SQLiteException: [SQLITE_READONLY] Attempt to write a readonly database (attempt to write a readonly database)*/int cnt = jdbcTemplate.update("delete from tbl_Func where fnAbsLctId = 300");boolean end=true;}
}

寻找过程如下:

1.   /home/z/.m2/repository/org/xerial/sqlite-jdbc/3.42.0.0/sqlite-jdbc-3.42.0.0-sources.jar!/org/sqlite/SQLiteConnection.java```javaprivate static DB open(String url, String origFileName, Properties props) throws SQLException {...} //注意字典props中有 'open_mode=1'```
   

2.    /home/z/.m2/repository/org/xerial/sqlite-jdbc/3.42.0.0/sqlite-jdbc-3.42.0.0-sources.jar!/org/sqlite/SQLiteConfig.java
   

             public enum Pragma {OPEN_MODE("open_mode", "Database open-mode flag", null), //实践表明 open_mode设置为1 即 表示 只读模式打开数据库 相当于 命令 'sqlite3 -readonly fn.db'...}