[英]Vertx executeBatch not returning all rows
我正在使用 vertx JDBC 客戶端池並嘗試向表中插入多條記錄。 插入成功,但插入的記錄不返回,而只返回第一條記錄。
使用batchExecute
插入多條記錄的代碼
List<Tuple> batch = new ArrayList<>();
batch.add(Tuple.of(36,"st","st"));
batch.add(Tuple.of(36,"st1","st1"));
pool.preparedQuery("INSERT INTO table (col1,col2,col3) VALUES($1, $2, $3) returning *").executeBatch(batch,rowSetAsyncResult -> {
System.out.println("size = " + rowSetAsyncResult.result().size()); // this always return 1
for(Row row:rowSetAsyncResult.result()){
System.out.println("id = " + row.getInteger("id"));
}
});
Output
size = 1
id = 87
表有四列,其中一列是自動遞增的,這就是為什么上面的代碼有 3 列。
我在這里錯過了什么嗎?
嘗試這個:
pool.preparedQuery("INSERT INTO table (col1,col2,col3) VALUES($1, $2, $3) returning id").executeBatch(batch, res -> {
if (res.succeeded()) { // Process rows
RowSet<Row> rows = res.result();
int[] count = new int[] {0};
while (rows != null) {
count[0]++;
rows.iterator().forEachRemaining(row -> {
System.out.println("id: " + rows.getInteger("id"));});
rows = rows.next();
}
} else {
System.out.println("Batch failed " + res.cause());
}
});
我知道已經很晚了。 但我會為任何面臨同樣問題的人回答。 下面的代碼示例將解決問題並獲取所有行。
client
.preparedQuery("INSERT INTO color (color_name) VALUES ($1) RETURNING color_id")
.executeBatch(Arrays.asList(Tuple.of("white"), Tuple.of("red"), Tuple.of("blue")))
.onSuccess(res -> {
for (RowSet<Row> rows = res;rows.next() != null;rows = rows.next()) {
Integer colorId = rows.iterator().next().getInteger("color_id");
System.out.println("generated key: " + colorId);
}
});
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