在拦截器中获取url路径里@PathVariable参数值
解决办法
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Map pathVariables = (Map) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);String classId = (String)pathVariables.get("classId"); |
示例接口
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// 获取某个班级下面的学生列表@RequestMapping("/classes/{classId}/students")public String list(@PathVariable String classId){ return "学生列表";} |
完整示例
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package com.example.demo;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.HandlerInterceptor;import org.springframework.web.servlet.HandlerMapping;import org.springframework.web.servlet.ModelAndView;import java.util.Map;public class SpringMVCInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { Map pathVariables = (Map) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE); String chatbotId = (String)pathVariables.get("classId"); System.out.println("classId: " + classId); if ("1234".equals(classId)) return true; return false; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { // TODO Auto-generated method stub } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { // TODO Auto-generated method stub } } |
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package com.example.demo;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.InterceptorRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;@Configurationpublic class MvcInterceptorConfig extends WebMvcConfigurationSupport{ @Override protected void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new SpringMVCInterceptor()).addPathPatterns("/chatbot/**"); super.addInterceptors(registry); }} |
spring @PathVariable：请求路径url 上有变量值，通过@PathVariable获取
请求路径url 上有个变量值，可以通过@PathVariable来获取
示例：
id为变量值：
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@RequestMapping(value = "/page/{id}", method = RequestMethod.GET) |
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Tool tool = new Tool();tool.setUrls(new String[]{"finance/account/loanDownExcel/cur","finance/account/loanDownExcel/all"}); |
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@RequestMapping("accountlog/loanDownExcel/{type}")public void exportAccountLogExcel(@PathVariable("type") String type)throws Exception {} |
或者是
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public void exportAccountLogExcel(@PathVariable String type)throws Exception {} |
以上为个人经验，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/cnm10050/article/details/106344305
