java.lang.IllegalArgumentException: Expected MultipartHttpServletRequest: is a MultipartResolver configured?
时间: 2024-05-03 14:22:41 浏览: 11
This exception occurs when you try to access a request as a MultipartHttpServletRequest, but the request is not a multipart request. A multipart request is a request that contains multiple parts, typically used for file uploads.
To fix this error, you need to check if a MultipartResolver is configured in your application context. If not, you need to configure it to handle multipart requests.
Here's an example of how to configure a MultipartResolver in a Spring MVC application:
```java
@Configuration
@EnableWebMvc
public class AppConfig implements WebMvcConfigurer {
@Bean
public MultipartResolver multipartResolver() {
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
multipartResolver.setMaxUploadSize(1000000); // set max file size
return multipartResolver;
}
}
```
This code creates a CommonsMultipartResolver bean and sets the maximum file size to 1MB. You can adjust the max file size as needed.
Once you have configured the MultipartResolver, you can access the request as a MultipartHttpServletRequest without encountering the IllegalArgumentException.