生成的 Java 代码 Thrift 0.8.0 上的编译错误

Question

我正在试验一个简单的 Thrift 服务器，并想用 java 编写客户端。 我运行了命令

->thrift -gen java BLT.thrift

生成的 java 文件 Optimization.java 在 Eclipse IDE 中显示如下错误。

public static class Client extends org.apache.thrift.TServiceClient implements Iface

错误：TServiceClient 类型不能是 Client 的超类；超类必须是类

public Client(org.apache.thrift.protocol.TProtocol prot)
{
  super(prot, prot);
}

构造函数 Object(TProtocol, TProtocol) 未定义。 .....

我还是继续编译。

->mvn clean install

Optimization.java:[38,54] no interface expected here
[ERROR] /thrift/Optimization.java:[39,83] type parameter model.thrift.Optimization.Client is not within its bound
[ERROR] /thrift/Optimization.java:[68,6] cannot find symbol
symbol  : method
sendBase(java.lang.String,com.model.thrift.Optimization.maximizeRevenue_args)
location: class model.thrift.Optimization.Client
[ERROR] /thrift/Optimization.java:[74,6] cannot find symbol
symbol  : method
receiveBase(model.thrift.Optimization.maximizeRevenue_result,java.lang.String)
location: class model.thrift.Optimization.Client
[ERROR] /thrift/Optimization.java:[98,97] cannot find symbol
symbol  : variable ___protocolFactory
location: model.thrift.Optimization.AsyncClient
[ERROR] /thrift/Optimization.java:[98,117] cannot find symbol
symbol  : variable ___transport
location: class model.thrift.Optimization.AsyncClient
[ERROR] /thrift/Optimization.java:[99,10] cannot find symbol
symbol  : variable ___currentMethod
location: class model.thrift.Optimization.AsyncClient
[ERROR] /thrift/Optimization.java:[100,6] cannot find symbol
symbol  : variable ___manager
location: class thrift.Optimization.AsyncClient
[ERROR] /thrift/Optimization.java:[387,23] cannot find symbol
symbol  : method getScheme()
location: class org.apache.thrift.protocol.TProtocol
[ERROR] /thrift/Optimization.java:[391,23] cannot find symbol
symbol  : method getScheme()
location: class org.apache.thrift.protocol.TProtocol
[ERROR] /thrift/Optimization.java:[665,23] cannot find symbol
symbol  : method getScheme()
location: class org.apache.thrift.protocol.TProtocol
[ERROR] /thrift/Optimization.java:[669,23] cannot find symbol
symbol  : method getScheme()

-> mvn dependency:tree | grep -i thrift
[INFO] \- org.apache.thrift:libthrift:jar:0.8.0:compile

-> thrift -version java
Thrift version 0.8.0

我确实找到了这个帖子，但推荐的解决方案对我不起作用 Maven Thrift repository

我还对用于生成代码的 jar 和使用上述 pom.xml 提取的 jar 进行了校验和。有人知道为什么这些会有所不同

->md5sum /usr/local/lib/libthrift-0.8.0.jar
fff7102558cb0ab1c103b62752166ce8  /usr/local/lib/libthrift-0.8.0.jar

->md5sum ~/.m2/repository/org/apache/thrift/libthrift/0.8.0/libthrift-0.8.0.jar
d68695bb2406cb2ab5fbae6ff6e27d7e
/home/nipun/.m2/repository/org/apache/thrift/libthrift/0.8.0/libthrift-0.8.0.jar

任何帮助/见解将不胜感激。

Answer 1

看起来您链接的 libthrift 版本错误： org.apache.thrift.TServiceClient 在 0.8.0 中定义如下：

public abstract class TServiceClient

在 0.6.1 中：

public interface TServiceClient

我建议检查您的项目中是否存在对旧 libthrift jar 的传递依赖项。