package com.chhliu.springcloud.zuul;  
import javax.servlet.http.HttpServletRequest;  
import com.netflix.zuul.ZuulFilter; 
import com.netflix.zuul.context.RequestContext; 
public class AccessUserNameFilter extends ZuulFilter { 
  @Override 
  public Object run() { 
    RequestContext ctx = RequestContext.getCurrentContext(); 
    HttpServletRequest request = ctx.getRequest(); 
 
    System.out.println(String.format("%s AccessUserNameFilter request to %s", request.getMethod(), request.getRequestURL().toString())); 
 
    String username = request.getParameter("username");// 獲取請(qǐng)求的參數(shù) 
    if(null != username && username.equals("chhliu")) {// 如果請(qǐng)求的參數(shù)不為空，且值為chhliu時(shí)，則通過(guò) 
      ctx.setSendZuulResponse(true);// 對(duì)該請(qǐng)求進(jìn)行路由 
      ctx.setResponseStatusCode(200); 
      ctx.set("isSuccess", true);// 設(shè)值，讓下一個(gè)Filter看到上一個(gè)Filter的狀態(tài) 
      return null; 
    }else{ 
      ctx.setSendZuulResponse(false);// 過(guò)濾該請(qǐng)求，不對(duì)其進(jìn)行路由 
      ctx.setResponseStatusCode(401);// 返回錯(cuò)誤碼 
      ctx.setResponseBody("{\"result\":\"username is not correct!\"}");// 返回錯(cuò)誤內(nèi)容 
      ctx.set("isSuccess", false); 
      return null; 
    } 
  } 
 
  @Override 
  public boolean shouldFilter() { 
    return true;// 是否執(zhí)行該過(guò)濾器，此處為true，說(shuō)明需要過(guò)濾 
  } 
 
  @Override 
  public int filterOrder() { 
    return 0;// 優(yōu)先級(jí)為0，數(shù)字越大，優(yōu)先級(jí)越低 
  } 
 
  @Override 
  public String filterType() { 
    return "pre";// 前置過(guò)濾器 
  } 
} 

package com.chhliu.springcloud.zuul;  
import javax.servlet.http.HttpServletRequest; 
import com.netflix.zuul.ZuulFilter; 
import com.netflix.zuul.context.RequestContext;  
public class AccessPasswordFilter extends ZuulFilter {  
  @Override 
  public Object run() { 
    RequestContext ctx = RequestContext.getCurrentContext(); 
    HttpServletRequest request = ctx.getRequest(); 
 
    System.out.println(String.format("%s AccessPasswordFilter request to %s", request.getMethod(), request.getRequestURL().toString())); 
 
    String username = request.getParameter("password"); 
    if(null != username && username.equals("123456")) { 
      ctx.setSendZuulResponse(true); 
      ctx.setResponseStatusCode(200); 
      ctx.set("isSuccess", true); 
      return null; 
    }else{ 
      ctx.setSendZuulResponse(false); 
      ctx.setResponseStatusCode(401); 
      ctx.setResponseBody("{\"result\":\"password is not correct!\"}"); 
      ctx.set("isSuccess", false); 
      return null; 
    } 
  } 
 
  @Override 
  public boolean shouldFilter() { 
    RequestContext ctx = RequestContext.getCurrentContext(); 
    return (boolean) ctx.get("isSuccess");// 如果前一個(gè)過(guò)濾器的結(jié)果為true，則說(shuō)明上一個(gè)過(guò)濾器成功了，需要進(jìn)入當(dāng)前的過(guò)濾，如果前一個(gè)過(guò)濾器的結(jié)果為false，則說(shuō)明上一個(gè)過(guò)濾器沒(méi)有成功，則無(wú)需進(jìn)行下面的過(guò)濾動(dòng)作了，直接跳過(guò)后面的所有過(guò)濾器并返回結(jié)果 
  } 
 
  @Override 
  public int filterOrder() { 
    return 1; // 優(yōu)先級(jí)設(shè)置為1 
  } 
 
  @Override 
  public String filterType() { 
    return "pre"; 
  } 
} 

package com.chhliu.springcloud.zuul;  
import javax.servlet.http.HttpServletRequest;  
import com.netflix.zuul.ZuulFilter; 
import com.netflix.zuul.context.RequestContext;  
public class AccessTokenFilter extends ZuulFilter { 
  @Override 
  public Object run() { 
    RequestContext ctx = RequestContext.getCurrentContext(); 
    HttpServletRequest request = ctx.getRequest(); 
 
    System.out.println(String.format("%s AccessTokenFilter request to %s", request.getMethod(), 
        request.getRequestURL().toString())); 
     
    ctx.setSendZuulResponse(true); 
    ctx.setResponseStatusCode(200); 
    ctx.setResponseBody("{\"name\":\"chhliu\"}");// 輸出最終結(jié)果 
    return null; 
  } 
 
  @Override 
  public boolean shouldFilter() { 
    return true; 
  } 
 
  @Override 
  public int filterOrder() { 
    return 0; 
  } 
 
  @Override 
  public String filterType() { 
    return "post";// 在請(qǐng)求被處理之后，會(huì)進(jìn)入該過(guò)濾器 
  } 
} 

@Bean 
  public AccessUserNameFilter accessUserNameFilter() { 
    return new AccessUserNameFilter(); 
  } 
   
  @Bean 
  public AccessPasswordFilter accessPasswordFilter(){ 
    return new AccessPasswordFilter(); 
  }