详解如何通过tomcat的ManagerServlet远程部署项目

站长资源 2024/12/24 佚名

2 0 1

介绍

之前在邮政实习时，leader让我阅读tomcat的源代码，尝试自己实现远程部署项目的功能，于是便有了这此实践。
在Tomact中有一个Manager应用程序，它是用来管理已经部署的web应用程序，在这个应用程序中，ManagerServlet是他的主servlet，通过它我们可以获取tomcat的部分指标，远程管理web应用程序，不过这个功能会受到web应用程序部署中安全约束的保护。

当你请求ManagerServlet时，它会检查getPathInfo()返回的值以及相关的查询参数，以确定被请求的操作。它支持以下操作和参数(从servlet路径开始):

请求路径描述 /deploy"color: #ff0000">封装统一的远程请求管理类

封装此类用于方便client请求ManagerServlet：

import java.io.File;
import java.net.URL;
import java.net.URLEncoder;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.http.Header;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.Credentials;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.PoolingClientConnectionManager;
import org.apache.http.protocol.BasicHttpContext;

public class TomcatManager {
  private static final String MANAGER_CHARSET = "UTF-8";
  private String username;
  private URL url;
  private String password;
  private String charset;
  private boolean verbose;
  private DefaultHttpClient httpClient;
  private BasicHttpContext localContext;

  /** constructor */
  public TomcatManager(URL url, String username) {
    this(url, username, "");
  }
  public TomcatManager(URL url, String username, String password) {
    this(url, username, password, "ISO-8859-1");
  }
  public TomcatManager(URL url, String username, String password, String charset) {
    this(url, username, password, charset, true);
  }
  public TomcatManager(URL url, String username, String password, String charset, boolean verbose) {
    this.url = url;
    this.username = username;
    this.password = password;
    this.charset = charset;
    this.verbose = verbose;
    
    // 创建网络请求相关的配置
    PoolingClientConnectionManager poolingClientConnectionManager = new PoolingClientConnectionManager();
    poolingClientConnectionManager.setMaxTotal(5);
    this.httpClient = new DefaultHttpClient(poolingClientConnectionManager);

    if (StringUtils.isNotEmpty(username)) {
      Credentials creds = new UsernamePasswordCredentials(username, password);

      String host = url.getHost();
      int port = url.getPort() > -1 "/deploy");
    buffer.append("").append(URLEncoder.encode(path, charset));
    if (war != null) {
      buffer.append("&war=").append(URLEncoder.encode(war.toString(), charset));
    }
    if (update) {
      buffer.append("&update=true");
    }
    return invoke(buffer.toString());
  }

  /** 获取所有已部署的web应用程序的上下文路径。格式为path:status:sessions(活动会话数) */
  public TomcatManagerResponse list() throws Exception {
    StringBuilder buffer = new StringBuilder("/list");
    return invoke(buffer.toString());
  }

  /** 获取系统信息和JVM信息 */
  public TomcatManagerResponse serverinfo() throws Exception {
    StringBuilder buffer = new StringBuilder("/serverinfo");
    return invoke(buffer.toString());
  }

  /** 真正发送请求的方法 */
  private TomcatManagerResponse invoke(String path) throws Exception {
    HttpRequestBase httpRequestBase = new HttpGet(url + path);
    HttpResponse response = httpClient.execute(httpRequestBase, localContext);

    int statusCode = response.getStatusLine().getStatusCode();
    switch (statusCode) {
      case HttpStatus.SC_OK: // 200
      case HttpStatus.SC_CREATED: // 201
      case HttpStatus.SC_ACCEPTED: // 202
        break;
      case HttpStatus.SC_MOVED_PERMANENTLY: // 301
      case HttpStatus.SC_MOVED_TEMPORARILY: // 302
      case HttpStatus.SC_SEE_OTHER: // 303
      String redirectUrl = getRedirectUrl(response);
      this.url = new URL(redirectUrl);
      return invoke(path);
    }

    return new TomcatManagerResponse().setStatusCode(response.getStatusLine().getStatusCode())
        .setReasonPhrase(response.getStatusLine().getReasonPhrase())
        .setHttpResponseBody(IOUtils.toString(response.getEntity().getContent()));
  }
  
  /** 提取重定向URL */
  protected String getRedirectUrl(HttpResponse response) {
    Header locationHeader = response.getFirstHeader("Location");
    String locationField = locationHeader.getValue();
    // is it a relative Location or a full "http") "color: #ff0000">封装响应结果集




@Data
public class TomcatManagerResponse {
  private int statusCode;
  private String reasonPhrase;
  private String httpResponseBody;
}


测试远程部署


在测试之前请先在配置文件放通下面用户权限：




<role rolename="admin-gui"/>
<role rolename="admin-script"/>
<role rolename="manager-gui"/>
<role rolename="manager-script"/>
<role rolename="manager-jmx"/>
<role rolename="manager-status"/>
<user username="sqdyy" password="123456" roles="manager-gui,manager-script,manager-jmx,manager-status,admin-script,admin-gui"/>



下面是测试成功远程部署war包的代码：




import static org.testng.AssertJUnit.assertEquals;
import java.io.File;
import java.net.URL;
import org.testng.annotations.Test;

public class TestTomcatManager {

  @Test
  public void testDeploy() throws Exception {
    TomcatManager tm = new TomcatManager(new URL("http://localhost:8080/manager/text"), "sqdyy", "123456");
    File war = new File("E:\\tomcat\\simple-war-project-1.0-SNAPSHOT.war");
    TomcatManagerResponse response = tm.deploy("/simple-war-project-1.0-SNAPSHOT", war, true);
    System.out.println(response.getHttpResponseBody());
    assertEquals(200, response.getStatusCode());
    
    // output:
    // OK - Deployed application at context path /simple-war-project-1.0-SNAPSHOT
  }

  @Test
  public void testList() throws Exception {
    TomcatManager tm = new TomcatManager(new URL("http://localhost:8080/manager/text"), "sqdyy", "123456");
    TomcatManagerResponse response = tm.list();
    System.out.println(response.getHttpResponseBody());
    assertEquals(200, response.getStatusCode());
    
    // output:
    // OK - Listed applications for virtual host localhost
    // /:running:0:ROOT
    // /simple-war-project-1.0-SNAPSHOT:running:0:simple-war-project-1.0-SNAPSHOT
    // /examples:running:0:examples
    // /host-manager:running:0:host-manager
    // /manager:running:0:manager
    // /docs:running:0:docs
  }

  @Test
  public void testServerinfo() throws Exception {
    TomcatManager tm = new TomcatManager(new URL("http://localhost:8080/manager/text"), "sqdyy", "123456");
    TomcatManagerResponse response = tm.serverinfo();
    System.out.println(response.getHttpResponseBody());
    assertEquals(200, response.getStatusCode());
    
    // output:
    // OK - Server info
    // Tomcat Version: Apache Tomcat/7.0.82
    // OS Name: Windows 10
    // OS Version: 10.0
    // OS Architecture: amd64
    // JVM Version: 1.8.0_144-b01
    // JVM Vendor: Oracle Corporation
  }
}


参考资料


ManagerServlet 源码地址 
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

tomcat,ManagerServlet远程部署,tomcat,远程部署项目

广告合作：本站广告合作请联系QQ：858582 申请时备注：广告合作（否则不回）
免责声明：本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除！

评论“详解如何通过tomcat的ManagerServlet远程部署项目”

暂无评论...

www.wwsws.com 伏龙阁资源网

39,976影音资源

44,792技术资源

21,817软件资源

651,128站长资源

稳了！魔兽国服回归的3条重磅消息！官宣时间再确认！

昨天有一位朋友在大神群里分享，自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址，com.cn和后面的zh都非常明白地表明这就是国服战网。
而他在复制这个网址并且进行登录之后，确实是网易的网址，也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情，因为以前都没有出现这样的情况，现在突然提示跳转到国服战网的网址，是不是说明了简体中文客户端已经开始进行更新了呢？

更新日志

2024年12月24日

详解如何通过tomcat的ManagerServlet远程部署项目

详解linux系统调用原理

详解nginx代理天地图做缓存解决跨域问题

评论“详解如何通过tomcat的ManagerServlet远程部署项目”

稳了！魔兽国服回归的3条重磅消息！官宣时间再确认！

更新日志

友情链接