c3p0和Heroku postgres，SSL问题
[英]c3p0 and Heroku postgres, issues with SSL
问题描述
UPDATED 
更新
Can't connect to a postgres database. 无法连接到postgres数据库。 The dependency of postgres is added via maven. postgres的依赖性是通过maven添加的。
Maven dependency Maven依赖
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901-1.jdbc4</version>
</dependency>
Postgres Pool Postgres池
public class PostgresDB implements DBPool {
public PostgresDB() {
}
private static ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();
static {
try {
Properties props = new Properties();
props.setProperty("ssl", "false");
comboPooledDataSource.setDriverClass( "org.postgresql.Driver" );
comboPooledDataSource.setJdbcUrl("jdbc:postgresql://ec2-79-125-4-72.eu-west-1.compute.amazonaws.com:5432/d35hi5u7rnue7f");
comboPooledDataSource.setUser("user");
comboPooledDataSource.setPassword("xxxxxxxx");
comboPooledDataSource.setProperties(props);
} catch (Exception e) {
System.out.println("Error");
// handle the exception
}
}
public Connection getConnection() throws SQLException {
return comboPooledDataSource.getConnection();
}
}
Code for get a Connection 获取连接的代码
Connection connection = PostgresDB.getConnection();
Error 错误
WARNING: com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@2326357e -- Acquisition Attempt Failed!!!
Fix 固定
If you have the same problem change the code to this: 如果您遇到同样的问题，请将代码更改为：
comboPooledDataSource.setJdbcUrl("jdbc:postgresql://url:port/database");
Properties props = new Properties();
props.setProperty("sslmode", "require");
props.setProperty("ssl", "true");
props.setProperty("sslfactory", "org.postgresql.ssl.NonValidatingFactory");
props.setProperty("user", "username");
props.setProperty("password", "xxxxxxx");
comboPooledDataSource.setProperties(props);
1 个解决方案
解决方案1
0 已采纳 2019-03-25 12:59:01
Instead of props.setProperty("ssl", "false"); 而不是props.setProperty("ssl", "false"); try: 尝试：
props.setProperty("sslmode", "disable");
For more info see Heroku's docs on Connecting to Relational Databases on Heroku with Java . 有关更多信息，请参阅Heroku 关于使用Java连接到 Heroku上的关系数据库的文档。
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