Tomcat服务启动失败：java.lang.OutOfMemoryError: Java heap space-CFANZ编程社区

Tomcat服务启动失败：java.lang.OutOfMemoryError: Java heap space

删除残留的注册表信息。这种方法比较繁琐，但是可以解决问题。在安装新版本之前，你需要删除之前安装的版本所残留的注册表信息。
修改打包配置文件中的appid 但是如果appid是固定的则不能使用这个方案
这是我项目的打包配置

electron-builder.json
{
  "productName": "name",
  "appId": "appId",
  "directories": {
    "output": "release/v${version}"
  },
  "files": [
    "dist-electron",
    "dist"
  ],
  "publish": [
    {
      "provider": "generic",
      "url": ""
    }
  ],
  "asar": true,
  "nsis": {
    "oneClick": false,
    "perMachine": true,
    "shortcutName": "${productName}",
    "uninstallDisplayName": "${productName}",
    "runAfterFinish": true,
    "deleteAppDataOnUninstall": true,
    "allowToChangeInstallationDirectory": true,
    "include": "dist/installer.nsh",
    "guid": "b96a0cd0-6202-4088-9981-15fdd925595c"
  },
  "win": {
    "icon": "dist/favicon.ico",
    "artifactName": "${productName}.${ext}",
    "requestedExecutionLevel": "requireAdministrator"
  },
  "mac": {
    "icon": "dist/favicon.icns",
    "artifactName": "${productName}_${version}.${ext}",
    "target": [
      "dmg"
    ]
  },
  "linux": {
    "target": [
      "AppImage",
      "deb"
    ],
    "icon": "dist/favicon.ico",
    "artifactName": "${productName}.${ext}",
    "desktop": {
      "Icon": "/opt/electron-pure-admin/resources/app/dist/favicon.ico"
    }
  }
}

通过修改nsis中guid来达到要求 guid是有规则的不能随便填写这个方法更灵活些不需要每次打包的时候都修改代码只需要进行相应配置即可

首先需要新建一个generate-guid.js文件用来每次打包的时候生成一个新的guid

function guid() { // 这是在网上找的guid生成算法
  return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
    const r = (Math.random() * 16) | 0,
      v = c == "x" ? r : (r & 0x3) | 0x8;
    return v.toString(16);
  });
}

const fs = require("fs");

// 生成新的GUID
const newGuid = guid();

// 读取package.json文件
const electronJson = JSON.parse(fs.readFileSync("electron-builder.json"));

// 将新的GUID写入package.json文件
electronJson.nsis.guid = newGuid;
fs.writeFileSync(
  "electron-builder.json",
  JSON.stringify(electronJson, null, 2)
);