Question

您好我在尝试创建用户时遇到此错误，希望有人可以提供帮助。其他功能就像一个魅力，但不是这个。有一个客户端和一个服务器。

提前谢谢你：D

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;
}

发布方法服务器端点

@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();
}

Server DbConnection类中的Prepared语句

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;
}

输入到Api

欢迎来到主菜单

您有以下选择

登录

创建用户

2

输入您的名字

克里斯托弗

输入您的姓氏

Palsgaard

输入您的电子邮件

Chris@chris.com

输入您的用户名

好朋友

输入您的密码

1234

错误

尝试调试客户端连接类第132行

时出错

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

服务器错误日志

[2016-12-07T17：28：05.007 + 0100] [glassfish 4.1] [警告] [] [javax.enterprise.web] [tid：_ThreadID = 27 _ThreadName = http-listener-1（3）] [ timeMillis：1481128085007] [levelValue：900] [[ StandardWrapperValve [MyApplication]：servlet的Servlet.service（）MyApplication引发了异常 com.google.gson.stream.MalformedJsonException：使用JsonReader.setLenient（true）接受第1行第5列路径的格式错误的JSON $ 在com.google.gson.stream.JsonReader.syntaxError（JsonReader.java:1559）在com.google.gson.stream.JsonReader.checkLenient（JsonReader.java:1401）在com.google.gson.stream.JsonReader.doPeek（JsonReader.java:542）在com.google.gson.stream.JsonReader.peek（JsonReader.java:425）在com.google.gson.Gson.assertFullConsumption（Gson.java:859）在com.google.gson.Gson.fromJson（Gson.java:853）在com.google.gson.Gson.fromJson（Gson.java:801）在com.google.gson.Gson.fromJson（Gson.java:773）在endpoints.UsersEndpoint.create（UsersEndpoint.java:113） at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method） at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62） at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43） at java.lang.reflect.Method.invoke（Method.java:498） at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory $ 1.invoke（ResourceMethodInvocationHandlerFactory.java:81） at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher $ 1.run（AbstractJavaResourceMethodDispatcher.java:144） at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke（AbstractJavaResourceMethodDispatcher.java:161） at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider $ ResponseOutInvoker.doDispatch（JavaResourceMethodDispatcherProvider.java:160） at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch（AbstractJavaResourceMethodDispatcher.java:99）在org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke（ResourceMethodInvoker.java:389）在org.glassfish.jersey.server.model.ResourceMethodInvoker.apply（ResourceMethodInvoker.java:347）在org.glassfish.jersey.server.model.ResourceMethodInvoker.apply（ResourceMethodInvoker.java:102）在org.glassfish.jersey.server.ServerRuntime $ 2.run（ServerRuntime.java:309）在org.glassfish.jersey.internal.Errors $ 1.call（Errors.java:271）在org.glassfish.jersey.internal.Errors $ 1.call（Errors.java:267）在org.glassfish.jersey.internal.Errors.process（Errors.java:315）在org.glassfish.jersey.internal.Errors.process（Errors.java:297）在org.glassfish.jersey.internal.Errors.process（Errors.java:267）在org.glassfish.jersey.process.internal.RequestScope.runInScope（RequestScope.java:317）在org.glassfish.jersey.server.ServerRuntime.process（ServerRuntime.java:292）在org.glassfish.jersey.server.ApplicationHandler.handle（ApplicationHandler.java:1139）在org.glassfish.jersey.servlet.WebComponent.service（WebComponent.java:460）在org.glassfish.jersey.servlet.ServletContainer.service（ServletContainer.java:386）在org.glassfish.jersey.servlet.ServletContainer.service（ServletContainer.java:334）在org.glassfish.jersey.servlet.ServletContainer.service（ServletContainer.java:221）在org.apache.catalina.core.StandardWrapper.service（StandardWrapper.java:1682）在org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:318） at org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:160）在org.apache.catalina.core.StandardPipeline.doInvoke（StandardPipeline.java:734）在org.apache.catalina.core.StandardPipeline.invoke（StandardPipeline.java:673）在com.sun.enterprise.web.WebPipeline.invoke（WebPipeline.java:99）在org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:174）在org.apache.catalina.connector.CoyoteAdapter.doService（CoyoteAdapter.java:416）在org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:283） at com.sun.enterprise.v3.services.impl.ContainerMapper $ HttpHandlerCallable.call（ContainerMapper.java:459） at com.sun.enterprise.v3.services.impl.ContainerMapper.service（ContainerMapper.java:167）在org.glassfish.grizzly.http.server.HttpHandler.runService（HttpHandler.java:206）在org.glassfish.grizzly.http.server.HttpHandler.doHandle（HttpHandler.java:180）在org.glassfish.grizzly.http.server.HttpServerFilter.handleRead（HttpServerFilter.java:235）在org.glassfish.grizzly.filterchain.ExecutorResolver $ 9.execute（ExecutorResolver.java:119）在org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter（DefaultFilterChain.java:283）在org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart（DefaultFilterChain.java:200）在org.glassfish.grizzly.filterchain.DefaultFilterChain.execute（DefaultFilterChain.java:132）在org.glassfish.grizzly.filterchain.DefaultFilterChain.process（DefaultFilterChain.java:111）在org.glassfish.grizzly.ProcessorExecutor.execute（ProcessorExecutor.java:77）在org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent（TCPNIOTransport.java:536）在org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent（AbstractIOStrategy.java:112）在org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0（WorkerThreadIOStrategy.java:117）在org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access $ 100（WorkerThreadIOStrategy.java:56）在org.glassfish.grizzly.strategies.WorkerThreadIOStrategy $ WorkerThreadRunnable.run（WorkerThreadIOStrategy.java:137）在org.glassfish.grizzly.threadpool.AbstractThreadPool $ Worker.doWork（AbstractThreadPool.java:591）在org.glassfish.grizzly.threadpool.AbstractThreadPool $ Worker.run（AbstractThreadPool.java:571）在java.lang.Thread.run（Thread.java:745） ]

Answer 1

您当前的代码：

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);

...看起来你应该解密之前你试图解析JSON数据（因此解析收到的json时会出现MalformedJsonException）。

顺便说一句，String.class可能不是你想要将json内容反序列化的（User.class怎么样？）

编辑：

对于解密，请尝试以下方法：

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

SomeClass 是一个可以容纳json内容的类（用户可能是一个很好的候选者，但你需要检查一下）。

POST http：// localhost：8080 / server2_0_war_exploded / user返回的响应状态为500内部服务器错误

1 个答案: