达梦数据库修改字段长度_DM7 FAQ (DM7常见问题解答)

作者：你好赵伟 | 2024-05-28 18:20:00

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达梦修改列长度失败

楼主，请教个问题

我在Win7上安装了V4版本的客户端，使用达梦数据交换平台软件进行远程连接数据库服务，但是一直报错。

我的连接信息如下：主机名为服务器端IP地址，端口为数据库端口，用户名为SYSDBA，密码为SYSDBA

以下是报错代码：org.apache.http.NoHttpResponseException: 服务器端IP地址:2018 failed to respond

at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:143)

at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)

at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260)

at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161)

at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:153)

at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271)

at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)

at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:254)

at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)

at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)

at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)

at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)

at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)

at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)

at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)

at com.dameng.common.service.remote.http.HttpServiceInterceptor.getEncryptType(HttpServiceInterceptor.java:73)

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