springboot拦截器获取不到请求参数
时间: 2023-11-21 21:51:00 浏览: 172
在Spring Boot中,拦截器可以通过HttpServletRequest对象获取请求参数。可以在拦截器的preHandle方法中获取请求参数,代码示例如下:
```
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
String param1 = request.getParameter("param1");
String param2 = request.getParameter("param2");
// do something with the parameters
return true;
}
```
如果拦截器无法获取请求参数,可能是因为请求体已经被读取,导致请求参数无法再次读取。可以尝试在拦截器中添加以下代码,以重置请求体:
```
if (request instanceof HttpServletRequest) {
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
ServletRequest requestWrapper = new BodyReaderHttpServletRequestWrapper(httpServletRequest);
filterChain.doFilter(requestWrapper, response);
return;
}
```
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