Node/Postgresql Error: connect ECONNREFUSED 127.0.0.1:5432 at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16)
Node/Postgresql Error: connect ECONNREFUSED 127.0.0.1:5432 at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16)
我一直是 运行 连接到 Postgresql 数据库（通过 Knex）的节点服务器。在我的笔记本电脑崩溃之前，一切都按预期正常工作。重新启动后，数据库连接根本不起作用，并且出现以下错误：
Error: connect ECONNREFUSED 127.0.0.1:5432
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16)
尝试通过 DBeaver 建立 Postgresql 连接也会导致同样的错误。我的服务器本身可以完全正常启动。我只在尝试连接到数据库的 API 调用时收到错误。我的数据库连接设置如下所示：
const db = knex({
client: 'pg',
connection: DATABASE_URL,
});
同样，在我的笔记本电脑崩溃之前，这一切都运行良好。我猜在那个过程中发生了一些事情，但我不确定是什么或如何解决它。任何 ideas/advice 将不胜感激！
下面是完整的 npm 日志：
0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli '/Users/<name>/.nvm/versions/node/v12.16.2/bin/node',
1 verbose cli '/Users/<name>/.nvm/versions/node/v12.16.2/bin/npm',
1 verbose cli 'run',
1 verbose cli 'dev'
1 verbose cli ]
2 info using npm@6.14.4
3 info using node@v12.16.2
4 verbose run-script [ 'predev', 'dev', 'postdev' ]
5 info lifecycle express-boilerplate@1.0.0~predev: express-boilerplate@1.0.0
6 info lifecycle express-boilerplate@1.0.0~dev: express-boilerplate@1.0.0
7 verbose lifecycle express-boilerplate@1.0.0~dev: unsafe-perm in lifecycle true
8 verbose lifecycle express-boilerplate@1.0.0~dev: PATH: /Users/<name>/.nvm/versions/node/v12.16.2/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/<name>/Desktop/BLOC/productify-server/node_modules/.bin:/Users/<name>/.nvm/versions/node/v12.16.2/bin:/Library/Frameworks/Python.framework/Versions/3.8/bin:/Library/Frameworks/Python.framework/Versions/3.7/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/Users/<name>/anaconda3/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Users/<name>/Downloads/apache-maven-3.6.1 :/usr/local/share/dotnet
9 verbose lifecycle express-boilerplate@1.0.0~dev: CWD: /Users/<name>/Desktop/BLOC/productify-server
10 silly lifecycle express-boilerplate@1.0.0~dev: Args: [ '-c', 'nodemon src/server.js' ]
11 silly lifecycle express-boilerplate@1.0.0~dev: Returned: code: 130 signal: null
12 info lifecycle express-boilerplate@1.0.0~dev: Failed to exec dev script
13 verbose stack Error: express-boilerplate@1.0.0 dev: `nodemon src/server.js`
13 verbose stack Exit status 130
13 verbose stack at EventEmitter.<anonymous> (/Users/<name>/.nvm/versions/node/v12.16.2/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack at EventEmitter.emit (events.js:310:20)
13 verbose stack at ChildProcess.<anonymous> (/Users/<name>/.nvm/versions/node/v12.16.2/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:310:20)
13 verbose stack at maybeClose (internal/child_process.js:1021:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
14 verbose pkgid express-boilerplate@1.0.0
15 verbose cwd /Users/<name>/Desktop/BLOC/productify-server
16 verbose Darwin 19.4.0
17 verbose argv "/Users/<name>/.nvm/versions/node/v12.16.2/bin/node" "/Users/<name>/.nvm/versions/node/v12.16.2/bin/npm" "run" "dev"
18 verbose node v12.16.2
19 verbose npm v6.14.4
20 error code ELIFECYCLE
21 error errno 130
22 error express-boilerplate@1.0.0 dev: `nodemon src/server.js`
22 error Exit status 130
23 error Failed at the express-boilerplate@1.0.0 dev script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 130, true ]
您的 Windows 机器中的 PostgreSQL 有问题，请尝试使用以下命令重新启动您的 PostgreSQL 服务器：
pg_ctl -D "C:\Program Files\PostgreSQL.6\data" restart
如果这不能解决您的问题，请尝试查看问题所在的日志。
日志在目录 %PROGRAMFILES%\PostgreSQL.3\data\pg_log 中可用（如果您没有使用默认设置，请根据您的 PostgreSQL 版本和安装 PostgreSQL 的位置进行调整）。
我一直是 运行 连接到 Postgresql 数据库（通过 Knex）的节点服务器。在我的笔记本电脑崩溃之前，一切都按预期正常工作。重新启动后，数据库连接根本不起作用，并且出现以下错误：
Error: connect ECONNREFUSED 127.0.0.1:5432
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16)
尝试通过 DBeaver 建立 Postgresql 连接也会导致同样的错误。我的服务器本身可以完全正常启动。我只在尝试连接到数据库的 API 调用时收到错误。我的数据库连接设置如下所示：
const db = knex({
client: 'pg',
connection: DATABASE_URL,
});
同样，在我的笔记本电脑崩溃之前，这一切都运行良好。我猜在那个过程中发生了一些事情，但我不确定是什么或如何解决它。任何 ideas/advice 将不胜感激！
下面是完整的 npm 日志：
0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli '/Users/<name>/.nvm/versions/node/v12.16.2/bin/node',
1 verbose cli '/Users/<name>/.nvm/versions/node/v12.16.2/bin/npm',
1 verbose cli 'run',
1 verbose cli 'dev'
1 verbose cli ]
2 info using npm@6.14.4
3 info using node@v12.16.2
4 verbose run-script [ 'predev', 'dev', 'postdev' ]
5 info lifecycle express-boilerplate@1.0.0~predev: express-boilerplate@1.0.0
6 info lifecycle express-boilerplate@1.0.0~dev: express-boilerplate@1.0.0
7 verbose lifecycle express-boilerplate@1.0.0~dev: unsafe-perm in lifecycle true
8 verbose lifecycle express-boilerplate@1.0.0~dev: PATH: /Users/<name>/.nvm/versions/node/v12.16.2/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/<name>/Desktop/BLOC/productify-server/node_modules/.bin:/Users/<name>/.nvm/versions/node/v12.16.2/bin:/Library/Frameworks/Python.framework/Versions/3.8/bin:/Library/Frameworks/Python.framework/Versions/3.7/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/Users/<name>/anaconda3/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Users/<name>/Downloads/apache-maven-3.6.1 :/usr/local/share/dotnet
9 verbose lifecycle express-boilerplate@1.0.0~dev: CWD: /Users/<name>/Desktop/BLOC/productify-server
10 silly lifecycle express-boilerplate@1.0.0~dev: Args: [ '-c', 'nodemon src/server.js' ]
11 silly lifecycle express-boilerplate@1.0.0~dev: Returned: code: 130 signal: null
12 info lifecycle express-boilerplate@1.0.0~dev: Failed to exec dev script
13 verbose stack Error: express-boilerplate@1.0.0 dev: `nodemon src/server.js`
13 verbose stack Exit status 130
13 verbose stack at EventEmitter.<anonymous> (/Users/<name>/.nvm/versions/node/v12.16.2/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack at EventEmitter.emit (events.js:310:20)
13 verbose stack at ChildProcess.<anonymous> (/Users/<name>/.nvm/versions/node/v12.16.2/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:310:20)
13 verbose stack at maybeClose (internal/child_process.js:1021:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
14 verbose pkgid express-boilerplate@1.0.0
15 verbose cwd /Users/<name>/Desktop/BLOC/productify-server
16 verbose Darwin 19.4.0
17 verbose argv "/Users/<name>/.nvm/versions/node/v12.16.2/bin/node" "/Users/<name>/.nvm/versions/node/v12.16.2/bin/npm" "run" "dev"
18 verbose node v12.16.2
19 verbose npm v6.14.4
20 error code ELIFECYCLE
21 error errno 130
22 error express-boilerplate@1.0.0 dev: `nodemon src/server.js`
22 error Exit status 130
23 error Failed at the express-boilerplate@1.0.0 dev script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 130, true ]
您的 Windows 机器中的 PostgreSQL 有问题，请尝试使用以下命令重新启动您的 PostgreSQL 服务器：
pg_ctl -D "C:\Program Files\PostgreSQL.6\data" restart
如果这不能解决您的问题，请尝试查看问题所在的日志。
日志在目录 %PROGRAMFILES%\PostgreSQL.3\data\pg_log 中可用（如果您没有使用默认设置，请根据您的 PostgreSQL 版本和安装 PostgreSQL 的位置进行调整）。