Changes between Version 10 and Version 11 of FAQs

Timestamp:

2014-02-04T08:08:59Z (10 years ago)

Author:

Pan Luo

Comment:

--

FAQs

@@ -61 +61 @@
 
 iPeer exports data to a comma separated value file (CSV) which can be read by a program such as Excel.
+
+=== When running with iPeer Building Block, got error message: Could not read JSON ===
+The full messages is:
+{{{
+    org.springframework.http.converter.HttpMessageNotReadableException: Could not read JSON: 
+Can not deserialize instance of ca.ubc.ctlt.ipeerb2.domain.User[] out of VALUE_NUMBER_INT token at ....
+}}}
+
+Logging the raw message will reveal that the response message has been chunked with a leading number and ending 0 (http://en.wikipedia.org/wiki/Chunked_transfer_encoding). This cause !RestTemplate doesn't recognize the response and throw the exception. And this has been seen when server is set up with Apache + mod_php + Nginx (1.0.15) Proxy on RHEL 6.5.
+
+There are several ways to solve this problem:
+* Quick workaround: Adding "chunked_transfer_encoding off;" in nginx configuration file to disable the chunked transfer encoding feature.
+* A patch has been added to iPeer code base to avoid the response being chunked. This patch will be included in version 3.1.1.
+* (Figure out why RestTemplate is not correct parsing chunked response.)