本文主要是介绍案例： 模拟登陆，获取Druid SQL监控数据，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
本文重在编写模拟登陆的代码；Druid SQL监控 admin 平台，重在辅助验证；
本案例采用springboot框架；
1.jar包版本信息：
<!-- alibaba的druid数据库连接池 --><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.1.20</version></dependency>2. 数据库连接池配置信息：
spring:datasource:name: monitortype: com.alibaba.druid.pool.DruidDataSourcedruid:filters: statdriver-class-name: com.mysql.jdbc.Driverurl: jdbc:mysql://IP:PORT/DATABASE?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=Asia/Shanghaiusername: rootpassword: rootinitial-size: 1min-idle: 1max-active: 20max-wait: 60000time-between-eviction-runs-millis: 60000min-evictable-idle-time-millis: 300000validation-query: SELECT 'x'test-while-idle: truetest-on-borrow: falsetest-on-return: falsepool-prepared-statements: falsemax-pool-prepared-statement-per-connection-size: 20
3.DruidConfiguration配置代码：
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;/*** <p>类描述</p>** @author yuanyirui* @Date 2020年1月3日 上午10:21:22*/
@Configuration
public class DruidConfiguration {@Beanpublic ServletRegistrationBean statViewServle() {ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");//IP白名单//servletRegistrationBean.addInitParameter("allow","192.168.1.12,127.0.0.1");//IP黑名单//servletRegistrationBean.addInitParameter("deny","192.168.4.23");//控制台用户servletRegistrationBean.addInitParameter("loginUsername", "admin");servletRegistrationBean.addInitParameter("loginPassword", "admin");//是否能够重置数据servletRegistrationBean.addInitParameter("resetEnable", "false");return servletRegistrationBean;}@Beanpublic FilterRegistrationBean statFilter() {FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());//添加过滤规则filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
// filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico");return filterRegistrationBean;}
}4.启动项目，登陆地址：
http://localhost:9008/monitor/druid/login.html
如上配置：
用户名和密码同为：admin
druid sql API地址：http://localhost:9008/monitor/druid/sql.json
5.模拟登陆，后去sql数据
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;public class MockDruidLogin {static String druidCookie = "JSESSIONID=3DB050C51ECF84554EE37245DE0CD00A";// 登陆 Urlstatic String loginUrl = "http://localhost:9008/monitor/druid/submitLogin?loginUsername=admin&loginPassword=admin";// 需登陆后访问的 Urlstatic String dataUrl = "http://localhost:9008/monitor/druid/sql.json?orderBy=SQL&orderType=desc&page=1&perPageCount=1000000&";static String headerUrl = "http://localhost:9008/monitor/druid/header.html";public static void main(String[] args) {while (true) {try {login();Thread.sleep(800);} catch (Exception e) {e.printStackTrace();}}
//}private static void login() {try {HttpClient httpClient = new HttpClient();// 模拟登陆，按实际服务器端要求选用 Post 或 Get 请求方式PostMethod postMethod = new PostMethod(loginUrl);// 设置登陆时要求的信息，用户名和密码NameValuePair[] data = {new NameValuePair("loginUsername", "admin"),new NameValuePair("loginPassword", "admin")};postMethod.setParameter("Cookie", druidCookie);postMethod.setRequestBody(data);// 设置 HttpClient 接收 Cookie,用与浏览器一样的策略httpClient.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);httpClient.getParams().setParameter(HttpMethodParams.SINGLE_COOKIE_HEADER, true);httpClient.executeMethod(postMethod);// postMethod.getResponseBody();// 获得登陆后的 CookieCookie[] cookies = httpClient.getState().getCookies();StringBuffer tmpcookies = new StringBuffer();for (Cookie c : cookies) {tmpcookies.append(c.toString() + ";");System.out.println("cookies = " + c.toString());}System.out.println("模拟登录成功");GetMethod getMethod = new GetMethod(dataUrl);getMethod.setRequestHeader("cookie", druidCookie);//核心点是在这里重新设置了cookiepostMethod.setRequestHeader("Referer", headerUrl);postMethod.setRequestHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36");httpClient.executeMethod(getMethod);String text = getMethod.getResponseBodyAsString();
// System.out.println("获取到SQL返回值： " + text);JSONObject jsonObject = JSONObject.parseObject(text);JSONArray content = jsonObject.getJSONArray("Content");if (content != null&&!content.isEmpty() ) {for (Object o : content) {JSONObject cont = (JSONObject) o;String sql = cont.getString("SQL");
// System.out.println("获取到SQL： " + sql);String pureSql = sql.replaceAll("\\n\\t\\t\\t", " ").replaceAll("\\t", " ").replaceAll("\\n", " ");System.out.println("获取到SQL： " + pureSql.replaceAll("\\?", "1"));}}System.out.println("---------------------------------执行下一个循环---------------------------------");} catch (Exception e) {e.printStackTrace();}}}
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