:zap: 优化代码。必填项添加，类型调整，字符限制防止超过数据库字符长度

src/const/crud/gen/gen.js

@@ -126,20 +126,40 @@ export const tableDsOption = {
     },
     {
       label: '名称',
-      prop: 'name'
+      prop: 'name',
+      rules: [
+        { required: true, message: '请输入名称', trigger: 'blur' },
+        { max: 32, message: '长度在 32 个字符', trigger: 'blur' }
+      ]
     },
     {
       label: 'jdbcUrl',
       prop: 'url',
-      overHidden: true
+      type: 'textarea',
+      span: 24,
+      row: true,
+      minRows: 2,
+      overHidden: true,
+      rules: [
+        { required: true, message: '请输入jdbcUrl', trigger: 'blur' },
+        { max: 128, message: '长度在 128 个字符内', trigger: 'blur' }
+      ]
     },
     {
       label: '用户名',
-      prop: 'username'
+      prop: 'username',
+      rules: [
+        { required: true, message: '请输入用户名', trigger: 'blur' },
+        { max: 32, message: '长度在 32 个字符', trigger: 'blur' }
+      ]
     },
     {
       label: '密码',
-      prop: 'password'
+      prop: 'password',
+      rules: [
+        { required: true, message: '请输入密码', trigger: 'blur' },
+        { max: 32, message: '长度在 32 个字符', trigger: 'blur' }
+      ]
     },
     {
       label: '创建时间',