init

.gitignore

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+.idea
+out

myoauth.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="web" name="Web">
+      <configuration>
+        <descriptors>
+          <deploymentDescriptor name="web.xml" url="file://$MODULE_DIR$/web/WEB-INF/web.xml" />
+        </descriptors>
+        <webroots>
+          <root url="file://$MODULE_DIR$/web" relative="/" />
+        </webroots>
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" exported="" name="javax.servlet:javax.servlet-api:3.1.0" level="project" />
+  </component>
+</module>

src/com/my/app/AppServlet.java

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+package com.my.app;
+
+import com.my.util.HttpURLClient;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+@WebServlet("/AppServlet")
+public class AppServlet extends HttpServlet {
+
+
+
+    String oauthURl="http://localhost:8080/OauthServlet";
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+
+        System.out.println("start parse code...");
+
+        String code = request.getParameter("code");
+
+        Map<String, String> params = new HashMap<String, String>();
+        params.put("code","s3ers89u");
+        params.put("grant_type","authorization_code");
+
+        String result = HttpURLClient.doPost(oauthURl,HttpURLClient.mapToStr(params));
+
+
+        System.out.println("result:"+result);
+
+
+    }
+}

src/com/my/oauth/OauthServlet.java

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+package com.my.oauth;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Random;
+
+@WebServlet("/OauthServlet")
+public class OauthServlet extends HttpServlet {
+
+
+    String authUrl="http://localhost/OauthServlet/response_type=code&redirect_uri=redirect_uri&app_id=app_id&app_secret=app_secret";
+
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
+
+        System.out.println("start accept post req, generate access_toen");
+
+        String grantType = request.getParameter("grant_type");
+        if("authorization_code".equals(grantType)){
+
+            System.out.println("start generate access_toen");
+
+
+            response.getWriter().write("ACCESSTOKEN");
+
+        }
+    }
+
+
+
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+
+
+
+//        String responseType = "";//响应类型 告诉授权服务要求返回什么，比如code，token
+        String appId = "";//第三方软件ID
+        String appSecret = "";//第三方软件秘钥
+        String redirecturi = "";//重定向地址
+        String code = "";//授权码
+        String accessToken = "";//访问令牌
+        String refreshToken = "";//刷新令牌
+        String scop = "" ;//授权访问权限范围
+        String grantType = "";//授权类型 告诉授权服务我要采用什么样的授权类型去请求
+        String tokenType = "";// 令牌类型
+        String state = "";// 用在安全防护上 比如跨站保护
+
+
+
+        String responseType = request.getParameter("response_type");
+        request.getParameter("app_id");
+        request.getParameter("app_secret");
+        request.getParameter("redirect_uri");
+        request.getParameter("code");
+        request.getParameter("access_token");
+        request.getParameter("refresh_token");
+        request.getParameter("scop");
+        request.getParameter("grant_type");
+        request.getParameter("token_type");
+        request.getParameter("state");
+
+        if("code".equals(responseType)){
+
+            String url = new StringBuilder(redirecturi).append("").toString();
+            response.sendRedirect(url);
+
+        }else if("token".equals(responseType)){
+
+        }
+
+
+
+        if("authorization_code".equals(grantType)){
+
+            System.out.println("start generate access_toen");
+
+            // TODO: 2020/2/19  生成access_token
+
+            response.getWriter().write("ACCESSTOKEN");
+
+        }else if("client_credentials".equals(grantType)){
+
+
+        }else if("password".equals(grantType)){
+
+
+        }else if("refresh_token".equals(grantType)){
+
+
+        }else{
+
+
+        }
+
+
+    }
+
+
+    private String generateCode(){
+        Random r = new Random();
+        StringBuilder rs = new StringBuilder();
+        for (int i = 0; i < 8; i++) {
+            rs.append(r.nextInt(10));
+        }
+        return rs.toString();
+
+    }
+
+
+    private String generateAccessToken(String appId,String userPin){
+
+        return "";
+    }
+
+
+    public static void main(String[] args) {
+
+        System.out.println(new OauthServlet().generateCode());
+
+    }
+
+}

src/com/my/oauth/Servlet.java

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+package com.my.oauth;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@WebServlet(name = "Servlet")
+public class Servlet extends HttpServlet {
+
+    public void init(){
+        System.out.println("Hello world, this message is from servlet!");
+    }
+
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        response.getOutputStream().print("Hello World");
+
+
+    }
+
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+
+        response.setContentType("text/html");
+        response.getOutputStream().print("Hello World");
+    }
+}