r servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested e

异常信息是Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is com.suntang.common.exception.RRException: 用户账号已被占用] with root cause。造成这个异常的原因是用户账号已被占用。
另外，还有一个异常信息是Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed;...].这可能是由于URL不存在或与项目的根路径冲突导致的。因此，需要检查URL是否正确匹配。
还有一个异常信息是Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://localhost/8081:user/1": Connection refused: connect; nested exception is java.net.ConnectException: Connection refused: connect] with root cause java.net.ConnectException: Connection refused: connect。这个异常可能是由于连接被拒绝导致的，可能是因为URL不存在或无法连接到指定的地址。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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- *3* [Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request](https://blog.csdn.net/weixin_47164204/article/details/126218723)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
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