Java

Question

如何修复AQL语法错误？我正在尝试使用查询创建边，但出现以下错误：

Failed to execute query. Response: 400, Error: 1501 - AQL: syntax error, unexpected end of query string near '@edges' at position 1:57 (while parsing)

用于执行查询的代码：

try {

 String query = "INSERT { _from:TurmaA._teste2, _to:TurmaA._testepedro } IN @edges";
 Map<String, Object> bindVars = new MapBuilder().put("edges", nome2).get();
 ArangoCursor<BaseDocument> cursor = arangoDB.db(dbName).query(query, bindVars, 
null, BaseDocument.class);

cursor.forEachRemaining(aDocument -> {
  System.out.println("Key: " + aDocument.getKey());
 });
} catch (ArangoDBException e) {
 System.err.println("Failed to execute query. " + e.getMessage());
}

Answer 1

请注意collection bind variables have to be prefixed by two @@。

因此您的代码示例可能可以像这样轻松修复：


try {

 String query = "INSERT { _from:TurmaA._teste2, _to:TurmaA._testepedro } IN @@edges";
 Map<String, Object> bindVars = new MapBuilder().put("@edges", nome2).get();
 ArangoCursor<BaseDocument> cursor = arangoDB.db(dbName).query(query, bindVars, 
null, BaseDocument.class);

cursor.forEachRemaining(aDocument -> {
  System.out.println("Key: " + aDocument.getKey());
 });
} catch (ArangoDBException e) {
 System.err.println("Failed to execute query. " + e.getMessage());
}

Java - 无法执行 AQL 查询

Java - Failed to execute AQL query

arangodb