springboot中参数处理

springboot1中处理是这样的

@Configuration public class WebConfig extends WebMvcConfigurerAdapter{ @Autowired UserArgumentResolver userArgumentResolver; @Override public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) { argumentResolvers.add(userArgumentResolver); } }

再写一个参数处理类就可以了；

package com.cxy.config; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.cxy.domain.MiaoshaUser; import com.cxy.service.MiaoshaUserService; import org.apache.commons.lang3.StringUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.core.MethodParameter; import org.springframework.stereotype.Service; import org.springframework.web.bind.support.WebDataBinderFactory; import org.springframework.web.context.request.NativeWebRequest; import org.springframework.web.method.support.HandlerMethodArgumentResolver; import org.springframework.web.method.support.ModelAndViewContainer; @Service public class UserArgumentResolver implements HandlerMethodArgumentResolver { @Autowired MiaoshaUserService userService; public boolean supportsParameter(MethodParameter parameter) { Class<?> clazz = parameter.getParameterType(); return clazz==MiaoshaUser.class; } public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception { HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class); HttpServletResponse response = webRequest.getNativeResponse(HttpServletResponse.class); String paramToken = request.getParameter(MiaoshaUserService.COOKI_NAME_TOKEN); String cookieToken = getCookieValue(request, MiaoshaUserService.COOKI_NAME_TOKEN); if(StringUtils.isEmpty(cookieToken) && StringUtils.isEmpty(paramToken)) { return null; } String token = StringUtils.isEmpty(paramToken)?cookieToken:paramToken; return userService.getByToken(response, token); } private String getCookieValue(HttpServletRequest request, String cookiName) { Cookie[] cookies = request.getCookies(); if(cookies == null || cookies.length <= 0){ return null; } for(Cookie cookie : cookies) { if(cookie.getName().equals(cookiName)) { return cookie.getValue(); } } return null; } }

如果你版本升级到2

那么就需要进行：

package com.cxy.config; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Configuration; import org.springframework.web.method.support.HandlerMethodArgumentResolver; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; import java.util.List; @Configuration public class WebConfig1 implements WebMvcConfigurer{ @Autowired UserArgumentResolver userArgumentResolver; @Override public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) { argumentResolvers.add(userArgumentResolver); } }