nginx proxy_pass使用 详细

前端发起这样的请求：

http://192.168.0.2/test/aaa.txt

proxy_pass可以分为以下12种情况

Scenario 1

  ...
  location ^~ /test {
      ...
      proxy_pass http://127.0.0.1;
  }

代理后的实际URL为：

http://127.0.0.1/test/aaa.txt

Scenario 2

  ...
  location ^~ /test {
      ...
      proxy_pass http://127.0.0.1/;
  }

代理后的实际URL为：

http://127.0.0.1/aaa.txt

Scenario 3

  ...
  location ^~ /test {
      ...
      proxy_pass http://127.0.0.1/joy;
  }

代理后的实际URL为：

http://127.0.0.1/joyaaa.txt

Scenario 4

  ...
  location ^~ /test {
      ...
      proxy_pass http://127.0.0.1/joy/;
  }

代理后的实际URL为：

http://127.0.0.1/joy/aaa.txt

Scenario 5

upstream test01 {
  server 127.0.0.1;
}

server {
  ...
  location ^~ /test {
      ...
      proxy_pass http://test01/;
  }
}

代理后的实际URL为：

http://127.0.0.1//aaa.txt

Scenario 6

upstream test01 {
  server 127.0.0.1;
}

server {
  ...
  location ^~ /test {
      ...
      proxy_pass http://test01;
  }
}

代理后的实际URL为：

http://127.0.0.1/test/aaa.txt

Scenario 7

upstream test01 {
  server 127.0.0.1;
}

server {
  ...
  location ^~ /test {
      ...
      proxy_pass http://test01/joy;
  }
}

代理后的实际URL为：

http://127.0.0.1/joy/aaa.txt

Scenario 8

upstream test01 {
  server 127.0.0.1;
}

server {
  ...
  location ^~ /test {
      ...
      proxy_pass http://test01/joy/;
  }
}

代理后的实际URL为：

http://127.0.0.1/joy//aaa.txt

Scenario 9

server {
  ...
  set $test_url "a.b.c";
  location ^~ /test {
      ...
      proxy_pass http://$test_url/joy/;
  }
}

代理后的实际URL为：

http://127.0.0.1/joy/

Scenario 10

server {
  ...
  set $test_url "a.b.c";
  location ^~ /test {
      ...
      proxy_pass http://$test_url/joy;
  }
}

代理后的实际URL为：

http://127.0.0.1/joyaaa.txt

Scenario 11

server {
  ...
  location ^~ /test {
      ...
      proxy_pass http://a.a.a/joy;
  }
}

代理后的实际URL为：

http://127.0.0.1/joyaaa.txt

Scenario 12

server {
  ...
  location ^~ /test {
      ...
      proxy_pass http://a.a.a/joy/;
  }
}

代理后的实际URL为：

http://127.0.0.1/joy/aaa.txt