POST http://localhost:8080/server2_0_war_explorded/user返回的响应状态为500内部服务器错误

Question

客户端控制器中的createUser（）

public void createUser() {
    JsonObject data = new JsonObject();

    Scanner input = new Scanner(System.in);

    System.out.println("Input your firstname");
    data.addProperty("firstname", input.nextLine());

    System.out.println("Input your Lastname");
    data.addProperty("lastname", input.nextLine());

    System.out.println("Input your Email");
    data.addProperty("email", input.nextLine());

    System.out.println("Input your Username");
    data.addProperty("username", input.nextLine());

    System.out.println("Input your Password");
    data.addProperty("password", input.nextLine());

    data.addProperty("usertype", "0");

    Connection.postUser(data);


}

客户端连接类中的PostUser（）

public static String postUser(JsonObject data) {
    ClientResponse clientResponse = HttpRequests.post("/user/", Crypter.encryptDecryptXOR(new Gson().toJson(data)));

    String response = null;

    if (clientResponse == null) {

        System.out.println("Error on SDK");
    } else {
        response = clientResponse.getEntity(String.class);
        if (clientResponse.getStatus() == 200) {
            System.out.println(response);
        } else
            System.out.println("error");
    }
    clientResponse.close();
    return response;

}

客户端HttpRequests类中的Post方法

public static ClientResponse post(String path, String data) {
    ClientResponse clientResponse = null;

    try {

        WebResource webResource = client
                .resource("http://localhost:8080/server2_0_war_exploded")
                .path(path);

        clientResponse = webResource.accept("application/json").post(ClientResponse.class, data);
    }
    catch
            (UniformInterfaceException | ClientHandlerException e) {
        e.printStackTrace();
    }
    return clientResponse;
}

@POST
@Produces("application/json")


public Response create(String data) throws Exception {
    String s = new Gson().fromJson(data,String.class);
    String decrypt = Crypter.encryptDecryptXOR(s);
    if (controller.addUser(decrypt)) {
        return Response
                .status(200)
                .entity("{\"message\":\"Success! User added\"}")
                .build();

    }
    else return Response.status(400).entity("{\"message\":\"failed\"}").build();
}

public boolean addUser(User u) throws Exception {

    PreparedStatement addUserStatement =
            conn.prepareStatement("INSERT INTO Users (First_Name, Last_Name, Username, Email, Password, Usertype) VALUES (?, ?, ?, ?, ?, ?)");

    try {
        addUserStatement.setString(1, u.getFirstName());
        addUserStatement.setString(2, u.getLastName());
        addUserStatement.setString(3, u.getUsername());
        addUserStatement.setString(4, u.getEmail());
        addUserStatement.setString(5, u.getPassword());
        addUserStatement.setBoolean(6, u.getUserType());

        addUserStatement.execute();
    } catch (SQLException e) {
        e.printStackTrace();
    }
    return true;
}

创建用户

2

输入你的名字

输入您的用户名

朋友

输入密码

        if (clientResponse.getStatus() == 200) { clientResponse: "POST http://localhost:8080/server2_0_war_exploded/user returned a response status of 500 Internal Server Error"

Answer 1

您的当前代码：

客户端（生成json文本、加密并发送）：

    ClientResponse clientResponse = HttpRequests.post("/user/", Crypter.encryptDecryptXOR(new Gson().toJson(data)));

服务器端（解析json，然后解密）：

String s = new Gson().fromJson(data,String.class);
String decrypt = Crypter.encryptDecryptXOR(s);

String decrypted = Crypter.encryptDecryptXOR(data); 
SomeClass userData = new Gson().fromJson(decrypted, SomeClass.class);