形式为SpringMVC的两个按钮

时间:2018-07-05 17:59:59

标签: java spring

我要在表单中有2个按钮。一个添加孩子的按钮,另一个按钮应该创建家庭,然后转到另一个模板。我的控制器看不到@RequestParam String action我有这样的东西:

    <!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Add Child</title>
</head>
<body>
<p>Add Child or Children</p></br>

<form method="post" action="/addChild">
First Name <input type="text" name="first_name"></br>
Second Name <input type="text" name="second_name"></br>
Sex <input type="text" name="sex"></br>
Pesel <input type="text" name="pesel"></br>
<input type="submit" name= "Add child"value="Add child"  ></input>
    <input type="submit" name="Create family" value="Create family"></input>
</form>

</body>
</html>

和控制器

@PostMapping(value="addChild", params = "Add child")
public String addChild(@RequestParam("first_name") String firstName,
                       @RequestParam("second_name") String secondName,
                       @RequestParam ("sex") String sex,
                       @RequestParam ("pesel") String pesel,
                       @RequestParam String action){

    if(action.equals("Add child")) {
        ChildForm childForm = new ChildForm();
        childForm.setFirstName(firstName);
        childForm.setSecondName(secondName);
        childForm.setSex(sex);
        childForm.setPesel(pesel);
        childService.addChildToDB(childForm);

        return "AddChild";
    }else if(action.equals("Create family")){
        return "basic";
    }
    return "AddChild";
}

1 个答案:

答案 0 :(得分:0)

每个submit按钮都会执行<form>标记中指定的操作。基本上,您添加了两个将执行相同操作的按钮。

您可以为第二个提交按钮(不与第一个共享参数)创建另一个表单元素:

<form method="post" action="/createFamily">
    <input type="submit" name="Create family" value="Create family"></input>
</form>

OR

<input type="button" onclick="location.href='/createFamily';" value="Create family" />

OR

<a href="/createFamily" class="button">Create family</a>

在服务中创建另一个入口点,不要将2个端点混合在一起。您正在打破单一职责设计原则,将来会伤害您:

@PostMapping(value="addChild")
public String addChild(@RequestParam("first_name") String firstName,
                       @RequestParam("second_name") String secondName,
                       @RequestParam ("sex") String sex,
                       @RequestParam ("pesel") String pesel){

        ChildForm childForm = new ChildForm();
        childForm.setFirstName(firstName);
        childForm.setSecondName(secondName);
        childForm.setSex(sex);
        childForm.setPesel(pesel);
        childService.addChildToDB(childForm);

        return "AddChild";
}

@PostMapping(value="createFamily")
public String createFamily(){
       return 'basic';    
}