摘要：需求利用实现一个简易的信息管理系统。写的不太好，欢迎熟悉的大神来找茬。真心感激分析编写就是不断构建组件的过程，首先要根据需求进行的划分编码服务端没有用到服务器，采用了数据模拟的方式添加信息时自增长页面组件删除更新新增渲染

利用React实现一个简易的信息管理系统。

  
写的不太好，欢迎熟悉React的大神来找茬。真心感激！

编写React就是不断构建组件的过程，首先要根据需求进行UI的划分：

-StudentBox
  -StudentList
    -Student
  -StudentForm

没有用到服务器，采用了数据模拟的方式

var id = 41060122; //添加信息时自增长ID

var data = [
    {
        id: 41060120,
        name: "Mary",
        age: 20
    },
    {
        id: 41060121,
        name: "Jacky",
        age: 18
    },
    {
        id: 41060122,
        name: "Helen",
        age: 21
    }
];

StudentBox

var StudentBox = React.createClass({
    getInitialState: function () {
        return {data: data};
    },
    //删除
    handleDelete: function (index) {
        this.state.data.splice(index, 1);
        this.forceUpdate();
    },
    //更新
    handleUpdate: function (student) {
        this.state.data.forEach(function (item) {
            if (item.id === student.id) {
                _.extend(item, student);
            }
        });
        this.forceUpdate();
    },
    //新增
    handleSave: function (student) {
        this.state.data.push(_.extend(student, {id: ++id}));
        this.forceUpdate();
    },
    render: function () {
        return (
            

                

                    
Student Messages
                
                
                
            
        )
    }
});

StudentList

var StudentList = React.createClass({
    render: function () {
        var handleDelete = this.props.delete;
        var handleUpdate = this.props.update;
        return (
            
                {this.props.data.map(function (student, index) {
                    return 
                })}
                

                

                

                    
index
                    
number
                    
name
                    
age
                    
operation
                
                
                

            
        )
    }
});

Student

var Student = React.createClass({
    getInitialState: function () {
        return {isEdit: false};
    },
    handleEdit: function () {
        this.setState({isEdit: !this.state.isEdit});
    },
    handleDelete: function (index) {
        this.props.delete(index);
    },
    handleUpdate: function (id) {
        var name = React.findDOMNode(this.refs.name).value.trim();
        var age = React.findDOMNode(this.refs.age).value.trim();

        if (!name || !age) {
            return;
        }

        this.props.update({
            id: id,
            name: name,
            age: age
        });
        this.handleEdit();
    },
    render: function () {
        var index = this.props.index;
        var student = this.props.data;

        var operations = this.state.isEdit ?
            

                save
                
                cancel
                
            
 :
            

                edit
                delete
                
            
;


        var name = this.state.isEdit ?
             : student.name;

        var age = this.state.isEdit ?
             : student.age;

        return (
            
                {index}
                {student.id}
                {name}
                {age}
                {operations}
            
        )
    }
});

StudentForm

var StudentForm = React.createClass({
    handleSubmit: function (e) {
        e.preventDefault();

        var name = React.findDOMNode(this.refs.name).value.trim();
        var age = React.findDOMNode(this.refs.age).value.trim();

        if (!name || !age) {
            return;
        }

        this.props.save({
            name: name,
            age: age
        });
    },
    render: function () {
        return (
            

                

                    

                        
                    
                    

                        
                    
                    

                        Add student
                    
                
            

        )
    }
});

渲染

React.render(
    ,
    document.body
);