AwsLambdaServletContainerHandler(line:100)- Could not forward request

[1103036128]

Spring Boot ErrorController

2019-07-13 07:37:40,629 [main] DEBUG org.springframework.web.servlet.DispatcherServlet(line:1100)- Failed to complete request: org.springframework.http.InvalidMediaTypeException: Invalid mime type "; charset=utf-8": 'mimeType' must not be empty
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07:37:40
2019-07-13 07:37:40,631 [main] ERROR com.amazonaws.serverless.proxy.internal.servlet.AwsLambdaServletContainerHandler(line:100)- Could not forward request
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org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.http.InvalidMediaTypeException: Invalid mime type "; charset=utf-8": 'mimeType' must not be empty
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at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1013)
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at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
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at javax.servlet.http.HttpServlet.service(HttpServlet.java:665)
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at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
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at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainManager$ServletExecutionFilter.doFilter(FilterChainManager.java:351)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainHolder.doFilter(FilterChainHolder.java:84)
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at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209)
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at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
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at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
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at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainHolder.doFilter(FilterChainHolder.java:84)
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at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
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at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainHolder.doFilter(FilterChainHolder.java:84)
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at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainHolder.doFilter(FilterChainHolder.java:84)
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at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainHolder.doFilter(FilterChainHolder.java:84)
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at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
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at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:123)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainHolder.doFilter(FilterChainHolder.java:84)
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at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
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at com.amazonaws.serverless.proxy.internal.servlet.FilterChainHolder.doFilter(FilterChainHolder.java:84)
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at com.amazonaws.serverless.proxy.internal.servlet.AwsLambdaServletContainerHandler.doFilter(AwsLambdaServletContainerHandler.java:206)
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at com.amazonaws.serverless.proxy.spring.SpringBootLambdaContainerHandler.handleRequest(SpringBootLambdaContainerHandler.java:154)
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at com.amazonaws.serverless.proxy.spring.SpringBootLambdaContainerHandler.handleRequest(SpringBootLambdaContainerHandler.java:52)

[1103036128]

Failed to complete request: org.springframework.http.InvalidMediaTypeException: Invalid mime type "; charset=utf-8": 'mimeType' must not be empty

[sapessi]

Thanks for reporting this @1103036128. Do you have an example of the incoming request (event dump)? Also, make sure you are using the latest version of the framework: 1.3.2

[1103036128]

I found this problem: the aws lambda serverless container does not need to set the filter - response.SetCharacterEncoding (" utf-8 "), you can close this problem, thank you

[1103036128]

But I want to set the character encoding to utf-8,
where do I need to set this character encoding, am I using springboot configuration, or am I reporting an error.
#encoding
spring.http.encoding.charset=UTF-8
spring.http.encoding.enabled=true
spring.http.encoding.force=true
server.tomcat.uri-encoding=UTF-8

[1103036128]

The error is:
Failed to complete request: org.springframework.http.InvalidMediaTypeException: Invalid mime type "; charset=utf-8": 'mimeType' must not be empty

[1103036128]

My dependency is :

com.amazonaws.serverless
aws-serverless-java-container-spring
1.3.1

[1103036128]

The 1.3.2 version is the same error:
Invalid mime type "; charset=utf-8": 'mimeType' must not be empty

[1103036128]

My example：

@RestController
@RequestMapping("/ordr/v1")
public class OrderController {
	private static final Logger LOGGER = LoggerFactory.getLogger(OrderController.class);

	@RequestMapping(value="/health",method=RequestMethod.GET)
	public Object health(String name,HttpServletResponse response){
		Map<String, Object> model = new HashMap<String, Object>();
		model.put("code", 200);
		model.put("message", "health心跳测试完成。可正常使用");
		LOGGER.debug("test /health RESTful api.");
		return model;
	}
}

[1103036128]

ERROR com.amazonaws.serverless.proxy.internal.servlet.AwsLambdaServletContainerHandler(line:100)- Could not forward request

[1103036128]

@sapessi I hope you can help me with this problem. Thank you very much

[1103036128]

My springboot version is 2.1.4

[sapessi]

Thanks @1103036128 - I'll work to replicate today. This is the character encoding of the response correct?

[1103036128]

If I don't set the springboot configuration of utf-8, it will respond normally, but Chinese characters will be scrambled.So I want to set it to utf-8, but it will cause abnormal response

[sapessi]

Hi @1103036128, I figured out what is going on. Seems to be a bug but I'm not 100% sure what the appropriate behavior should be. There are two things going on here.

1. The framework treats all text content as ISO-8859-1 because that is the HTTP standard. Just like you used the server.tomcat.uri-encoding=UTF-8 configuration in your properties file, you can change the framework's default encoding using the ContainerConfig object. Simply add this line to the constructor of your Lambda handler class - or wherever you initialize the framework:

LambdaContainerHandler.getContainerConfig().setDefaultContentCharset("UTF-8");

2. The next issue is the potential bug I'm trying to figure out how to handle. When you configure Spring to automatically set to force the character encoding (spring.http.encoding.force=true), the framework makes a call to the setCharacterEncoding method of the response object before having set a content type. The bug in the class is that we try to set the header value right away and if there is no content type set we default it to "". This is what's causing the "; charset=UTF-8" value in the header. I'll keep digging to address this as soon as possible. Meanwhile, I would try to not to force the encoding.

[sapessi]

I'm committing a fix to this that conforms to the behavior described in the servlet specs. Once you see the commit appear in this issue you can test yourself by cloning the core branch of this repository, running mvn install on your local machine, and setting your dependency to 1.4-SNAPSHOT. Maven should be smart enough to find the pre-release version in your local repo.

[1103036128]

[1103036128]

mvn install:install-file -Dfile=aws-serverless-java-container-core-1.4-SNAPSHOT.jar -DgroupId=com.amazonaws.serverless -DartifactId=aws-serverless-java-container-core -Dversion=1.4-SNAPSHOT -Dpackaging=jar

[1103036128]

Is my above operation correct?

[1103036128]

When will you release it to Maven Repository?

[sapessi]

You could simply:

# clone the repo to your local machine
$ git clone https://github.com/awslabs/aws-serverless-java-container.git
$ cd aws-serverless-java-container

# switch to the core branch
$ git checkout core

# install the latest version in local
$ mvn install

Once it's installed, you can just change the dependency version in your project's pom.xml to use the 1.4-SNAPSHOT version. I have quite a few other features to address for the 1.4 release so it could be a few weeks. I'll try to pull it forward as much as possible.

[1103036128]

Thank you !