标签:拦截器 springboot request public handler import servlet response
1.编写一个拦截器
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import com.zl.fund.pojo.User;
public class LoginInterceptor extends HandlerInterceptorAdapter{
//在控制器执行前调用
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
User user = (User) request.getSession().getAttribute("loginUser");
String operUrl = request.getServletPath().toString();
if(user == null&&!operUrl.equals("/user/toLogin.do")&&!operUrl.equals("/user/login.do")&&!operUrl.equals("/scripts/login.js")) {
response.setCharacterEncoding("utf-8");
response.setContentType("text/html; charset=utf-8");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<script>");
// out.println("alert('登录已过期,请重新登录')");
out.println("location.href='"+request.getContextPath()+"/user/toLogin.do'");
out.println("</script>");
out.println("</html>");
return false;
}
return true;
}
//在后端控制器执行后调用
public void postHandle(HttpServletRequest request,
HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws Exception {
super.postHandle(request, response, handler, modelAndView);
}
//整个请求执行完成后调用
public void afterCompletion(HttpServletRequest request,
HttpServletResponse response, Object handler, Exception ex)
throws Exception {
super.afterCompletion(request, response, handler, ex);
}
}
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import com.zl.fund.pojo.User;
/**
* 去设置交易密码页面的拦截
* @author THINK
*
*/
public class SetTransCodeInterceptor extends HandlerInterceptorAdapter {
//在控制器执行前调用
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
User user = (User) request.getSession().getAttribute("loginUser");
//String operUrl = request.getServletPath().toString();
if(user.getIdCard() == null) {
response.sendRedirect(request.getContextPath() + "/security/toIdentityVerify.do");
return false;
}
return true;
}
//在后端控制器执行后调用
public void postHandle(HttpServletRequest request,
HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws Exception {
super.postHandle(request, response, handler, modelAndView);
}
//整个请求执行完成后调用
public void afterCompletion(HttpServletRequest request,
HttpServletResponse response, Object handler, Exception ex)
throws Exception {
super.afterCompletion(request, response, handler, ex);
}
}
2.编写一个管理器 实现WebMvcConfigurer
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class InterceptorConfig implements WebMvcConfigurer {
@Override
public void addInterceptors(InterceptorRegistry registry) {
//登录拦截的管理器
InterceptorRegistration registration = registry.addInterceptor(new LoginInterceptor()); //拦截的对象会进入这个类中进行判断
registration.addPathPatterns("/**"); //所有路径都被拦截
registration.excludePathPatterns("/","/scripts/**","/webjars/**","/error",
"/images/**","/asserts/**","/bootstrap-3.3.7-dist/**","/question",
"/toDetails/**","/fundMarket","/index","/user/**","/pagingByAjax"); //添加不拦截路径
registration.order(1);
//拦截访问设置交易密码的请求
InterceptorRegistration registrationTransCode = registry.addInterceptor(new SetTransCodeInterceptor());
registrationTransCode.addPathPatterns("/security/toSetTransCode.do");
registrationTransCode.order(2);
}
}
WebMvcConfigurationSupport和WebMvcConfigurer的区别
标签:拦截器,springboot,request,public,handler,import,servlet,response 来源: https://blog.csdn.net/weixin_44251024/article/details/88574902
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