private final static Logger logger = LoggerFactory.getLogger(GetData.class);
public static void main(String[] arg) throws Exception {
TypeInformation[] fieldTypes = new TypeInformation[] {
BasicTypeInfo.STRING_TYPE_INFO
};
RowTypeInfo rowTypeInfo = new RowTypeInfo(fieldTypes);
JDBCInputFormat jdbcInputFormat = JDBCInputFormat.buildJDBCInputFormat()
.setDrivername("com.MySQL.jdbc.Driver")
.setDBUrl("jdbc:mysql://ip:3306/tablename?characterEncoding=utf8")
.setUsername("*")
.setPassword("*")
.setQuery("select name from words")
.setRowTypeInfo(rowTypeInfo)
.finish();
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSource s = env.createInput(jdbcInputFormat); // datasource
BatchTableEnvironment tableEnv = new BatchTableEnvironment(env, TableConfig.DEFAULT());
tableEnv.registerDataSet("t2", s);
tableEnv.sqlQuery("select * from t2").printSchema();
Table query = tableEnv.sqlQuery("select * from t2");
DataSet result = tableEnv.toDataSet(query, Row.class);
result.print();
System.out.println(s.count());
}
通过插件将所需的类打到一个jar中
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maven-assembly-plugin
false
jar-with-dependencies
*
make-assembly
package
assembly
然后执行
./bin/flink run /flink-1.8.0/collector-api-0.1.jar