Java 如何测试@ControllerAdvice引用的注释的自定义异常处理程序？

我正在一家基于的服务代理上工作。我正在使用从

ServiceBrokerExceptionHandler

继承的自定义ExceptionHandler来调整所有ServiceBrokerRestController上特定情况下的HTTP状态代码：

@ControllerAdvice（annotations=ServiceBrokerRestController.class）
公共类MyServiceBrokerExceptionHandler扩展ServiceBrokerExceptionHandler{
@ExceptionHandler（{MyCustomException.class}）
@ResponseStatus（HttpStatus.INTERNAL\u SERVER\u错误）
公共错误消息handleException（MyCustomException ex）{
返回此.getErrorResponse（ex）；
}
}

---

现在我想测试它，但我真的不明白怎么做。由于处理程序应用于所有带有

@ServiceBrokerRestController

注释的控制器，因此我并不真正关心某个控制器bean，更不用说某个方法了。我只是想“模拟”某种ServiceBrokerRestController，并给出它的一个方法抛出一个

MyCustomException

web层应该返回500-内部服务器错误。我必须为此创建ServiceBrokerRestController虚拟，还是有更好的方法？

它应该是一个简单的集成，如下所示。您可以在测试包中创建一个虚拟控制器，它只抛出您想要测试的异常

虚拟控制器：

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class DummyExceptionTestController {
    @GetMapping("/my-exception")
    public void customException() {
        throw new MyCustomException("My Error Message 1");
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.web.servlet.MockMvc;

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@AutoConfigureMockMvc
@SpringBootTest(classes = DemoApplication.class)
public class ExceptionHandlerIT {

    @Autowired
    private MockMvc mockMvc;

    @Test
    public void testMyException() throws Exception {
        mockMvc.perform(get("/my-exception"))
                .andExpect(status().isBadRequest())
                .andExpect(content().string("My Error Message 1"));
    }


}

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

@ControllerAdvice
public class MyServiceBrokerExceptionHandler {

    @ExceptionHandler({MyCustomException.class})
    public ResponseEntity<String> handleException(MyCustomException ex) {
        return ResponseEntity.badRequest().body(ex.getMessage());
    }

}

public class MyCustomException extends RuntimeException {
    public MyCustomException(String msg) {
        super(msg);
    }
}

集成测试：

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class DummyExceptionTestController {
    @GetMapping("/my-exception")
    public void customException() {
        throw new MyCustomException("My Error Message 1");
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.web.servlet.MockMvc;

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@AutoConfigureMockMvc
@SpringBootTest(classes = DemoApplication.class)
public class ExceptionHandlerIT {

    @Autowired
    private MockMvc mockMvc;

    @Test
    public void testMyException() throws Exception {
        mockMvc.perform(get("/my-exception"))
                .andExpect(status().isBadRequest())
                .andExpect(content().string("My Error Message 1"));
    }


}

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

@ControllerAdvice
public class MyServiceBrokerExceptionHandler {

    @ExceptionHandler({MyCustomException.class})
    public ResponseEntity<String> handleException(MyCustomException ex) {
        return ResponseEntity.badRequest().body(ex.getMessage());
    }

}

public class MyCustomException extends RuntimeException {
    public MyCustomException(String msg) {
        super(msg);
    }
}

异常处理程序和异常：

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class DummyExceptionTestController {
    @GetMapping("/my-exception")
    public void customException() {
        throw new MyCustomException("My Error Message 1");
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.web.servlet.MockMvc;

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@AutoConfigureMockMvc
@SpringBootTest(classes = DemoApplication.class)
public class ExceptionHandlerIT {

    @Autowired
    private MockMvc mockMvc;

    @Test
    public void testMyException() throws Exception {
        mockMvc.perform(get("/my-exception"))
                .andExpect(status().isBadRequest())
                .andExpect(content().string("My Error Message 1"));
    }


}

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

@ControllerAdvice
public class MyServiceBrokerExceptionHandler {

    @ExceptionHandler({MyCustomException.class})
    public ResponseEntity<String> handleException(MyCustomException ex) {
        return ResponseEntity.badRequest().body(ex.getMessage());
    }

}

public class MyCustomException extends RuntimeException {
    public MyCustomException(String msg) {
        super(msg);
    }
}

import org.springframework.web.bind.annotation.ControllerAdvice；
导入org.springframework.web.bind.annotation.ExceptionHandler；
@控制器建议
公共类MyServiceBrokerExceptionHandler{
@ExceptionHandler（{MyCustomException.class}）
公共响应handleException（MyCustomException ex）{
返回ResponseEntity.badRequest（）.body（例如getMessage（））；
}
}
公共类MyCustomException扩展了RuntimeException{
公共MyCustomException（字符串消息）{
超级（味精）；
}
}