问使用json builder

EN

new JsonBuilder() {
            persons.collect{
                [
                        name: it.name,
                        age:  it.age,
                        companies: [{
                                        company1: it.company //The company comes from person object.
                                    },
                                    {
                                        company2: it.company
                                    }
                        ]
                ]
            }
        }