gaoxingliang opened a new issue, #274:
URL: https://github.com/apache/apisix-java-plugin-runner/issues/274
### Issue description
I have a env ：
wolf --> ext-plugin-post-req (decrypt the request)-> my upstream (python)
---> ext-plugin-post-resp (encrypt the response)
but when I check the content in my upstream, the body is still encrypted.
```
my post-req filter:
logger.info("input headers:{}, raw input:{}", request.getHeaders(),
request.getBody());
User user =
userService.tryFindUser(request.getHeader(Constants.HEADER_USER_ID));
if (user == null) {
response.setStatusCode(403);
response.setBody(ERROR_NOT_FOUND);
logger.warn("未找到用户：{}", request.getHeaders());
} else {
try {
String decryptedBody =
userService.decryptBody(request.getBody(), user);
request.setBody(decryptedBody);
request.setHeader(HEADER_REQUESTBODY_ENCRYPTED_FLAG, "true");
logger.info("DecryptRequestFilter：request:{}, user：{}，{}",
request.getRequestId(), user.getUserid(), decryptedBody);
} catch (Exception e) {
logger.error("decrypt request failure", e);
response.setStatusCode(400);
response.setBody(ERROR_DECRYPT_REQUEST_FAILURE);
}
}
```
and related log(you can see the request body is decrypted successfully.)
but the log in my python code(it says it's still encrypted )
```
my post-resp filter:
String userId = request.getUpstreamHeaders().get(Constants.HEADER_USER_ID);
logger.info("Current user id : {}, {}, body from upstream:{}",
userId, request.getUpstreamHeaders(), request.getBody());
User user = userService.tryFindUser(userId);
if (user == null) {
response.setStatusCode(403);
response.setBody(Constants.ERROR_NOT_FOUND);
logger.warn("not found the user, maybe disabled. wolfuserid:
{}", userId);
} else {
String encryptedBody =
userService.encryptBody(request.getBody(), user);
response.setBody(encryptedBody);
response.setHeader(Constants.HEADER_RESPONSEBODY_ENCRYPTED_FLAG,
"true");
response.setStatusCode(request.getUpstreamStatusCode());
logger.info("EncryptResponseFilter success：user(wolf)：{}，{}",
user.getUserid(), encryptedBody);
}
```
### Environment
runner:0.0.4
### Minimal test code / Steps to reproduce the issue
### What's the actual result? (including assertion message & call stack if
applicable)
### What's the expected result?
the post-req filter should change the body sent to upstream.
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