请大家忽略该邮件，已找到问题所在
song wang <sdlcwangson...@gmail.com> 于2020年8月3日周一 上午10:16写道：
> 各位好，
>
> 我在使用flink 1.11.0 连接mysql时，只要查询 integer
> 类型字段就会报如下错误，查询其他bigint、varchar类型都正常，请问是哪里有问题呢？
>
>
> 报错信息：
> Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast to
> java.lang.Integer
>
> at
> org.apache.flink.table.data.GenericRowData.getInt(GenericRowData.java:149)
> at org.apache.flink.table.data.RowData.get(RowData.java:257)
> at
> org.apache.flink.table.runtime.typeutils.RowDataSerializer.copyRowData(RowDataSerializer.java:156)
> at
> org.apache.flink.table.runtime.typeutils.RowDataSerializer.copy(RowDataSerializer.java:123)
> at
> org.apache.flink.table.runtime.typeutils.RowDataSerializer.copy(RowDataSerializer.java:50)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:715)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:692)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:672)
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:52)
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:30)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collect(StreamSourceContexts.java:104)
> at
> org.apache.flink.streaming.api.functions.source.InputFormatSourceFunction.run(InputFormatSourceFunction.java:93)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63)
> at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:201)
>
>
>
> 代码如下：
> StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();
> EnvironmentSettings settings = EnvironmentSettings.newInstance()
> .useBlinkPlanner()
> .inStreamingMode()
> .build();
> StreamTableEnvironment tEnv = StreamTableEnvironment.create(env,
> settings);
>
> tEnv.executeSql("create table base_price (\n" +
> " id INT,\n" +
> " mall_source INT,\n" +
> " sku_id STRING,\n" +
> " pricing_type INT,\n" +
> " pricing_method INT,\n" +
> " pricing_rule_id INT,\n" +
> " price BIGINT,\n" +
> " marking_price BIGINT\n" +
> ")\n" +
> "WITH (\n" +
> " 'connector' = 'jdbc',\n" +
> " 'url' = 'jdbc:mysql://127.0.0.1:3306/business',\n" +
> " 'table-name' = 'base_price',\n" +
> " 'username' = 'user',\n" +
> " 'password' = 'password',\n" +
> " 'lookup.cache.ttl' = '1s',\n" +
> " 'lookup.cache.max-rows' = '10'\n" +
> ")");
>
> TableResult result = tEnv.sqlQuery("select id from
> base_price").execute();
> result.print();
> env.execute("sql demo");
>
>
>
>
