通过Rest的Cypher请求返回400 Bad Request，为什么？

Question

我尝试了一个简单的密码休息请求。但我收到400 Bad Request作为回复。请求输出似乎没问题。怎么了？

public class HelloRest {
  public static String SERVER_ROOT_URI = "http://localhost:7474/db/data/";

  public static void main(String[] args) {
    Client client = Client.create();
    client.addFilter(new LoggingFilter(System.out));
    WebResource cypher = client.resource(SERVER_ROOT_URI + "cypher");
    String request = "{\"query\":\"MATCH (n) RETURN n\"}";
    ClientResponse cypherResponse = cypher.post(ClientResponse.class, request);
    System.out.println(cypherResponse);
  }
}

Answer 1

确保application/json用于Accept和Content-Type HTTP标头。如果这没有帮助，请转储完整的请求和完整的回复，并将其附加到您的问题。