我有一个Java Servlet类,当我的应用程序出现身份验证问题时,我尝试设置错误状态。但是,问题是,我能够设置错误状态,但无法在响应正文中设置错误消息。以下是我的尝试:
AuthorizationFilter.java
public class AuthorizationFilter implements Filter {
@Autowired
private ExceptionHandler exceptionHandler;
@Override
public void doFilter(final ServletRequest servletRequest, final ServletResponse servletResponse, final FilterChain filterChain) throws IOException, ServletException {
final HttpServletRequest request = (HttpServletRequest) servletRequest;
final HttpServletResponse response = (HttpServletResponse) servletResponse;
UserSession userSession = null;
try {
userSession = authProvider.authenticate(request, response);
} catch(RestUsageException throwable) {
exceptionHandler.handle(throwable.getExceptionCode(), throwable.getMessage(), throwable, response);
response.sendError(throwable.getRespondStatus().value());
// response.sendError(throwable.getRespondStatus().value(), "Message");
return;
}
...more code here
}
ExceptionHandler.java
@Override
public void handle(String exceptionCode, String message, Throwable throwable, final ServletResponse response) throws IOException {
String uuid = UUID.randomUUID().toString();
ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
String json = "{ \n" +
" \"errorCode\":\""+exceptionCode+"\",\n" +
" \"errorMessage\":\""+throwable.getMessage()+"\",\n" +
" \"success\":\"false\",\n" +
" \"errorId\":\""+uuid+"\"\n" +
"}";
response.getOutputStream().println(json);
// response.getOutputStream().flush();
}
我的throwable
包含我想要显示的正确HTTP状态。我尝试了两件事:
但该消息似乎只显示在HTTP状态标题中。
response.getOutputStream().flush();
清除回复,但之后当我尝试执行response.sendError(throwable.getRespondStatus().value());
时,我收到错误说Response is already committed
,我的身体出现但状态结束了200。有关如何设置错误消息正文的任何想法?任何帮助,将不胜感激。谢谢!
答案 0 :(得分:2)
您无法将责任流与response.sendError(...)
结合使用。
请尝试使用respons.setStatus(...)
。