src/main/java/com/itfsw/mybatis/generator/plugins/utils/JavaElementGeneratorTools.java
public static Field generateField(String fieldName, JavaVisibility visibility, FullyQualifiedJavaType javaType, String initString) {
        Field field = new Field(fieldName, javaType);
        field.setVisibility(visibility);
        if (initString != null) {
            field.setInitializationString(initString);
        }
        return field;
    }
public static Field generateField(String fieldName, JavaVisibility visibility, FullyQualifiedJavaType javaType, String initString) {
        Field field = new Field(fieldName, javaType);
        field.setVisibility(visibility);
        if (initString != null) {
            field.setInitializationString(initString);
        }
        return field;
    }
生成属性
@param fieldName  常量名称
@param visibility 可见性
@param javaType   类型
@param initString 初始化字段
@return