這是一個Task
public static void main(String[] args) throws IOException {
EntityLinkWordMegerBolt csb = new EntityLinkWordMegerBolt();
FindIterable<Document> documents = BUnit.readInputUnitStream();
File file =new File("D:\\Projects\\logs\\output_ELWMB.txt");
file.createNewFile();
FileOutputStream fileOutputStream = new FileOutputStream(f);
PrintStream printStream = new PrintStream(fileOutputStream);
System.setErr(printStream);
if(documents!=null){
Map stormConf = BUnit.getStormConfig();
csb.prepare(stormConf, null);
int i = 0;
for(Document document:documents){
//System.err.println(document);
UnitStreamTupleImpl tuple = new UnitStreamTupleImpl(JSONObject.parseObject(document.toJson()));
csb.execute(tuple, new UnitStreamBaiscOutputCollectorImpl(null));
i++;
}
System.out.println("over"+i);
}
}
重點是標藍部分,System.setErr(printStream);(關鍵)結果:
過程中遇到了eclipse報錯,無法啓動:
java.lang.OutOfMemoryError: java heap space
解決辦法:找到eclipse安裝目錄下的:eclipse.ini文件
修改:
-Xms512m
-Xmx2048m
問題解決,大小可根據自己需要來定。