springBoot做一个post请求，响应返回一个String参数，报错

SpringBoot Post请求返回String参数报错解决方案

最新推荐文章于 2024-10-01 23:22:58 发布

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最新推荐文章于 2024-10-01 23:22:58 发布 · 2.3k 阅读

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#springboot #post请求

本文介绍了在SpringBoot中遇到POST请求返回String参数时出现的错误，详细展示了控制器代码，并提供了错误信息。解决方法是在@PostMapping注解后面添加@ResponseBody注解，以确保返回内容能够被正确解析。

错误：这是后台报出的错误

2019-11-06 13:42:11.376 ERROR 11056 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Circular view path [login]: would dispatch back to the current handler URL [/login] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)] with root cause

javax.servlet.ServletException: Circular view path [login]: would dispatch back to the current handler URL [/login] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)
	at org.springframework.web.servlet.view.InternalResourceView.prepareForRendering(InternalResourceView.java:205) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:145) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1282) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1037) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.web.servlet.Disp