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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2021/03/27 09:29:27 UTC
[GitHub] [servicecomb-java-chassis] solitudeycq opened a new issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
solitudeycq opened a new issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325
### HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
在自定义的HttpClientFilter的afterReceiveResponse方法中，调用HttpServletResponseEx.getBodyBytes()获取到的字符包含不可见字符，导致序列化的时候失败，简易代码如下：
```java
public class CustomFilter implements HttpClientFilter {
@Override
public Response afterReceiveResponse(Invocation invocation, HttpServletResponseEx response) {
String response = new String(response.getBodyBytes(), StandardCharsets.UTF_8);
System.out.println(response);
}
}
```
获取到的字符串如下所示：
{"error":{"errorCode":500,"errorMsg":"查询出问题"},"data":null} |(}之后，|之前是不可见字符)
此时使用vertx自己的json工具解析的时候会出错，请问这个不可见字符是在什么时候什么原因加上的？
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[GitHub] [servicecomb-java-chassis] solitudeycq commented on issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
Posted by GitBox <gi...@apache.org>.
solitudeycq commented on issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325#issuecomment-816442984
问题解决
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325#issuecomment-809004140
这个需要从服务端的响应看下。 java chassis不会追加额外的内容， 除了服务端的实际响应值。
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[GitHub] [servicecomb-java-chassis] wujimin commented on issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
Posted by GitBox <gi...@apache.org>.
wujimin commented on issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325#issuecomment-809818242
```java
public interface BodyBufferSupport {
void setBodyBuffer(Buffer bodyBuffer);
Buffer getBodyBuffer();
// notice: byte[] maybe null, and length maybe bigger than body length
byte[] getBodyBytes();
int getBodyBytesLength();
}
```
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[GitHub] [servicecomb-java-chassis] solitudeycq commented on issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
Posted by GitBox <gi...@apache.org>.
solitudeycq commented on issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325#issuecomment-809139581
@liubao68 这个就是在服务端，业务代码执行完成之后，到filter之后就多了这些不可见字符
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[GitHub] [servicecomb-java-chassis] solitudeycq commented on issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
Posted by GitBox <gi...@apache.org>.
solitudeycq commented on issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325#issuecomment-809838435
@wujimin @liubao68 好的，谢谢二位，那我就采用result1的获取方式
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[GitHub] [servicecomb-java-chassis] solitudeycq closed issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
Posted by GitBox <gi...@apache.org>.
solitudeycq closed issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325
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[GitHub] [servicecomb-java-chassis] solitudeycq commented on issue #2325: HttpServletResponseEx.getBodyBytes()获取到的字符含有不可见字符
Posted by GitBox <gi...@apache.org>.
solitudeycq commented on issue #2325:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2325#issuecomment-809289623
@liubao68
调试后发现，result1和result2不一样，其中result2加上了不可见字符：
```java
public class CustomFilter implements HttpClientFilter {
@Override
public Response afterReceiveResponse(Invocation invocation, HttpServletResponseEx response) {
String result1 = new String(response.getBodyBuffer().getBytes(), StandardCharsets.UTF_8);
String result2 = new String(response.getBodyBytes(), StandardCharsets.UTF_8);
LOGGER.error("result1,use original getBytes method:{}", result1);
LOGGER.error("result2,use wrapped method:{}", result2);
}
}
```
请问宝哥，这个是什么原因？
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