1.软件准备

下载Nginx和Tomcat

Nginx：http://nginx.org/en/download.html 这里需要下载稳定版：Stable version 
Tomcat：下载就不说了，这里使用apache-tomcat-6.0.14版本

解压到一个目录

2.修改Tomcat的端口

Tomcat1：修改Server.xml

D:\nginx_cluster\apache-tomcat-6.0.14_1\conf\server.xml 
共修改3处内容：将以下端口都加1

1. <!--第1处-->
2. <Server port="18005" shutdown="SHUTDOWN">
3. <!--第2处-->
4. <Connector port="18080" protocol="HTTP/1.1"
5. connectionTimeout="20000"
6. redirectPort="8443" />
7. <!--第3处-->
8. <Connector port="18009" protocol="AJP/1.3" redirectPort="8443" />

Tomcat2：修改Server.xml

D:\nginx_cluster\apache-tomcat-6.0.14_2\conf\server.xml 
共修改3处内容：将以下端口都加2

1. <!--第1处-->
2. <Server port="28005" shutdown="SHUTDOWN">
3. <!--第2处-->
4. <Connector port="28080" protocol="HTTP/1.1"
5. connectionTimeout="20000"
6. redirectPort="8443" />
7. <!--第3处-->
8. <Connector port="28009" protocol="AJP/1.3" redirectPort="8443" />

3.测试Tomcat是否正常运行

分别访问两个Tomcat

http://localhost:18080/ 
http://localhost:28080/ 
都出现猫的页面说明正常，为了区分不同的Tomcat，这里修改${Tmocat_home}\webapps\ROOT\ index.html文件内容，加入内容以便区分

1. <h1>This Tomcat1</h1>

之后再次访问两个Tomcat 
 
 
至此，两个Tomcat运行正常。

4.配置Nginx

修改Nginx的主配置文件： 
D:\nginx_cluster\nginx-1.10.2\conf\ nginx.conf

1. #user nobody;
2. worker_processes 1;
3. #error_log logs/error.log;
4. #error_log logs/error.log notice;
5. #error_log logs/error.log info;
6. #pid logs/nginx.pid;
7. events {
8. worker_connections 1024;
9. }
10. http {
11. include mime.types;
12. default_type application/octet-stream;
13. #log_format main '$remote_addr - $remote_user [$time_local] "$request" '
14. # '$status $body_bytes_sent "$http_referer" '
15. # '"$http_user_agent" "$http_x_forwarded_for"';
16. #access_log logs/access.log main;
17. sendfile on;
18. #tcp_nopush on;
19. #keepalive_timeout 0;
20. keepalive_timeout 65;
21. #gzip on;
22. #监听localhost的80端口
23. server {
24. listen 80;
25. server_name localhost;
26. location / {
27. proxy_connect_timeout 3;
28. proxy_send_timeout 30;
29. proxy_read_timeout 30;
30. proxy_pass http://localhost;
31. }
32. }
33. # another virtual host using mix of IP-, name-, and port-based configuration
34. #
35. #server {
36. # listen 8000;
37. # listen somename:8080;
38. # server_name somename alias another.alias;
39. # location / {
40. # root html;
41. # index index.html index.htm;
42. # }
43. #}
44. #集群配置：服务器列表
45. upstream localhost {
46. server localhost:18080 weight=2;#服务器配置 weight是权重的意思，权重越大，分配的概率越大。
47. server localhost:28080 weight=1;
48. }
49. # HTTPS server
50. #
51. #server {
52. # listen 443 ssl;
53. # server_name localhost;
54. # ssl_certificate cert.pem;
55. # ssl_certificate_key cert.key;
56. # ssl_session_cache shared:SSL:1m;
57. # ssl_session_timeout 5m;
58. # ssl_ciphers HIGH:!aNULL:!MD5;
59. # ssl_prefer_server_ciphers on;
60. # location / {
61. # root html;
62. # index index.html index.htm;
63. # }
64. #}
65. }

主要配置

 
 
至此，Nginx的简单配置就完成了。下面开始测试

5.测试集群访问

启动Nginx

进入到Nginx目录 
启动命令为：start nginx 
停止命令为：nginx –s stop 

访问测试

访问：http://localhost/ 
Nginx内部配置了监听80端口，默认进行服务器的分发。 
 
 
随便刷新测试了10次，共访问了Tomcat1共8次，Tomcat2共2次。可以看到权重越大，访问到的概率越大。

6.配置文件

Tomcat1 的Server.xml配置文件

1. <!-- Note: A "Server" is not itself a "Container", so you may not
2. define subcomponents such as "Valves" at this level.
3. Documentation at /docs/config/server.html
4. -->
5. <Server port="18005" shutdown="SHUTDOWN">
6. <!--APR library loader. Documentation at /docs/apr.html -->
7. <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
8. <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
9. <Listener className="org.apache.catalina.core.JasperListener" />
10. <!-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -->
11. <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
12. <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
13. <!-- Global JNDI resources
14. Documentation at /docs/jndi-resources-howto.html
15. -->
16. <GlobalNamingResources>
17. <!-- Editable user database that can also be used by
18. UserDatabaseRealm to authenticate users
19. -->
20. <Resource name="UserDatabase" auth="Container"
21. type="org.apache.catalina.UserDatabase"
22. description="User database that can be updated and saved"
23. factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
24. pathname="conf/tomcat-users.xml" />
25. </GlobalNamingResources>
26. <!-- A "Service" is a collection of one or more "Connectors" that share
27. a single "Container" Note: A "Service" is not itself a "Container",
28. so you may not define subcomponents such as "Valves" at this level.
29. Documentation at /docs/config/service.html
30. -->
31. <Service name="Catalina">
32. <!--The connectors can use a shared executor, you can define one or more named thread pools-->
33. <!--
34. <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
35. maxThreads="150" minSpareThreads="4"/>
36. -->
37. <!-- A "Connector" represents an endpoint by which requests are received
38. and responses are returned. Documentation at :
39. Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
40. Java AJP Connector: /docs/config/ajp.html
41. APR (HTTP/AJP) Connector: /docs/apr.html
42. Define a non-SSL HTTP/1.1 Connector on port 8080
43. -->
44. <Connector port="18080" protocol="HTTP/1.1"
45. connectionTimeout="20000"
46. redirectPort="8443" />
47. <!-- A "Connector" using the shared thread pool-->
48. <!--
49. <Connector executor="tomcatThreadPool"
50. port="8080" protocol="HTTP/1.1"
51. connectionTimeout="20000"
52. redirectPort="8443" />
53. -->
54. <!-- Define a SSL HTTP/1.1 Connector on port 8443
55. This connector uses the JSSE configuration, when using APR, the
56. connector should be using the OpenSSL style configuration
57. described in the APR documentation -->
58. <!--
59. <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
60. maxThreads="150" scheme="https" secure="true"
61. clientAuth="false" sslProtocol="TLS" />
62. -->
63. <!-- Define an AJP 1.3 Connector on port 8009 -->
64. <Connector port="18009" protocol="AJP/1.3" redirectPort="8443" />
65. <!-- An Engine represents the entry point (within Catalina) that processes
66. every request. The Engine implementation for Tomcat stand alone
67. analyzes the HTTP headers included with the request, and passes them
68. on to the appropriate Host (virtual host).
69. Documentation at /docs/config/engine.html -->
70. <!-- You should set jvmRoute to support load-balancing via AJP ie :
71. <Engine name="Standalone" defaultHost="localhost" jvmRoute="jvm1">
72. -->
73. <Engine name="Catalina" defaultHost="localhost">
74. <!--For clustering, please take a look at documentation at:
75. /docs/cluster-howto.html (simple how to)
76. /docs/config/cluster.html (reference documentation) -->
77. <!--
78. <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
79. -->
80. <!-- The request dumper valve dumps useful debugging information about
81. the request and response data received and sent by Tomcat.
82. Documentation at: /docs/config/valve.html -->
83. <!--
84. <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
85. -->
86. <!-- This Realm uses the UserDatabase configured in the global JNDI
87. resources under the key "UserDatabase". Any edits
88. that are performed against this UserDatabase are immediately
89. available for use by the Realm. -->
90. <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
91. resourceName="UserDatabase"/>
92. <!-- Define the default virtual host
93. Note: XML Schema validation will not work with Xerces 2.2.
94. -->
95. <Host name="localhost" appBase="webapps"
96. unpackWARs="true" autoDeploy="true"
97. xmlValidation="false" xmlNamespaceAware="false">
98. <!-- SingleSignOn valve, share authentication between web applications
99. Documentation at: /docs/config/valve.html -->
100. <!--
101. <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
102. -->
103. <!-- Access log processes all example.
104. Documentation at: /docs/config/valve.html -->
105. <!--
106. <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
107. prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
108. -->
109. </Host>
110. </Engine>
111. </Service>
112. </Server>

Tomcat2 的Server.xml配置文件

1. <!-- Note: A "Server" is not itself a "Container", so you may not
2. define subcomponents such as "Valves" at this level.
3. Documentation at /docs/config/server.html
4. -->
5. <Server port="28005" shutdown="SHUTDOWN">
6. <!--APR library loader. Documentation at /docs/apr.html -->
7. <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
8. <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
9. <Listener className="org.apache.catalina.core.JasperListener" />
10. <!-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -->
11. <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
12. <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
13. <!-- Global JNDI resources
14. Documentation at /docs/jndi-resources-howto.html
15. -->
16. <GlobalNamingResources>
17. <!-- Editable user database that can also be used by
18. UserDatabaseRealm to authenticate users
19. -->
20. <Resource name="UserDatabase" auth="Container"
21. type="org.apache.catalina.UserDatabase"
22. description="User database that can be updated and saved"
23. factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
24. pathname="conf/tomcat-users.xml" />
25. </GlobalNamingResources>
26. <!-- A "Service" is a collection of one or more "Connectors" that share
27. a single "Container" Note: A "Service" is not itself a "Container",
28. so you may not define subcomponents such as "Valves" at this level.
29. Documentation at /docs/config/service.html
30. -->
31. <Service name="Catalina">
32. <!--The connectors can use a shared executor, you can define one or more named thread pools-->
33. <!--
34. <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
35. maxThreads="150" minSpareThreads="4"/>
36. -->
37. <!-- A "Connector" represents an endpoint by which requests are received
38. and responses are returned. Documentation at :
39. Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
40. Java AJP Connector: /docs/config/ajp.html
41. APR (HTTP/AJP) Connector: /docs/apr.html
42. Define a non-SSL HTTP/1.1 Connector on port 8080
43. -->
44. <Connector port="28080" protocol="HTTP/1.1"
45. connectionTimeout="20000"
46. redirectPort="8443" />
47. <!-- A "Connector" using the shared thread pool-->
48. <!--
49. <Connector executor="tomcatThreadPool"
50. port="8080" protocol="HTTP/1.1"
51. connectionTimeout="20000"
52. redirectPort="8443" />
53. -->
54. <!-- Define a SSL HTTP/1.1 Connector on port 8443
55. This connector uses the JSSE configuration, when using APR, the
56. connector should be using the OpenSSL style configuration
57. described in the APR documentation -->
58. <!--
59. <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
60. maxThreads="150" scheme="https" secure="true"
61. clientAuth="false" sslProtocol="TLS" />
62. -->
63. <!-- Define an AJP 1.3 Connector on port 8009 -->
64. <Connector port="28009" protocol="AJP/1.3" redirectPort="8443" />
65. <!-- An Engine represents the entry point (within Catalina) that processes
66. every request. The Engine implementation for Tomcat stand alone
67. analyzes the HTTP headers included with the request, and passes them
68. on to the appropriate Host (virtual host).
69. Documentation at /docs/config/engine.html -->
70. <!-- You should set jvmRoute to support load-balancing via AJP ie :
71. <Engine name="Standalone" defaultHost="localhost" jvmRoute="jvm1">
72. -->
73. <Engine name="Catalina" defaultHost="localhost">
74. <!--For clustering, please take a look at documentation at:
75. /docs/cluster-howto.html (simple how to)
76. /docs/config/cluster.html (reference documentation) -->
77. <!--
78. <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
79. -->
80. <!-- The request dumper valve dumps useful debugging information about
81. the request and response data received and sent by Tomcat.
82. Documentation at: /docs/config/valve.html -->
83. <!--
84. <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
85. -->
86. <!-- This Realm uses the UserDatabase configured in the global JNDI
87. resources under the key "UserDatabase". Any edits
88. that are performed against this UserDatabase are immediately
89. available for use by the Realm. -->
90. <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
91. resourceName="UserDatabase"/>
92. <!-- Define the default virtual host
93. Note: XML Schema validation will not work with Xerces 2.2.
94. -->
95. <Host name="localhost" appBase="webapps"
96. unpackWARs="true" autoDeploy="true"
97. xmlValidation="false" xmlNamespaceAware="false">
98. <!-- SingleSignOn valve, share authentication between web applications
99. Documentation at: /docs/config/valve.html -->
100. <!--
101. <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
102. -->
103. <!-- Access log processes all example.
104. Documentation at: /docs/config/valve.html -->
105. <!--
106. <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
107. prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
108. -->
109. </Host>
110. </Engine>
111. </Service>
112. </Server>

Nginx配置文件

1. #user nobody;
2. worker_processes 1;
3. #error_log logs/error.log;
4. #error_log logs/error.log notice;
5. #error_log logs/error.log info;
6. #pid logs/nginx.pid;
7. events {
8. worker_connections 1024;
9. }
10. http {
11. include mime.types;
12. default_type application/octet-stream;
13. #log_format main '$remote_addr - $remote_user [$time_local] "$request" '
14. # '$status $body_bytes_sent "$http_referer" '
15. # '"$http_user_agent" "$http_x_forwarded_for"';
16. #access_log logs/access.log main;
17. sendfile on;
18. #tcp_nopush on;
19. #keepalive_timeout 0;
20. keepalive_timeout 65;
21. #gzip on;
22. #监听localhost的80端口
23. server {
24. listen 80;
25. server_name localhost;
26. location / {
27. proxy_connect_timeout 3;
28. proxy_send_timeout 30;
29. proxy_read_timeout 30;
30. proxy_pass http://localhost;
31. }
32. }
33. # another virtual host using mix of IP-, name-, and port-based configuration
34. #
35. #server {
36. # listen 8000;
37. # listen somename:8080;
38. # server_name somename alias another.alias;
39. # location / {
40. # root html;
41. # index index.html index.htm;
42. # }
43. #}
44. #集群配置：服务器列表
45. upstream localhost {
46. server localhost:18080 weight=2;#服务器配置 weight是权重的意思，权重越大，分配的概率越大。
47. server localhost:28080 weight=1;
48. }
49. # HTTPS server
50. #
51. #server {
52. # listen 443 ssl;
53. # server_name localhost;
54. # ssl_certificate cert.pem;
55. # ssl_certificate_key cert.key;
56. # ssl_session_cache shared:SSL:1m;
57. # ssl_session_timeout 5m;
58. # ssl_ciphers HIGH:!aNULL:!MD5;
59. # ssl_prefer_server_ciphers on;
60. # location / {
61. # root html;
62. # index index.html index.htm;
63. # }
64. #}
65. }