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怎么解析SpringMVC接受表單自動封裝特性實例,相信很多沒有經驗的人對此束手無策,為此本文總結了問題出現的原因和解決方法,通過這篇文章希望你能解決這個問題。
Spring MVC中的Controller可以以實體類接受來自客戶端的form表單,表單的字段自動構成實體類對象
客戶端的表單
<form action="http://localhost:8080/test/user" method="POST"> <!-- 每個字段名對應實體類 --> <p> <input type="text" name="name"/> </p> <p> <input type="number" name="age"/> </p> <p> <input type="text" name="hobby"/> </p> <input type="submit" value="Submit"/></form>
實體類
public class User { private String name; private Integer age; private String hobby; public User() { this.name = "未初始化"; this.age = 10; this.hobby = "coding"; } public User(String name) { this.name = name; this.age = 10; this.hobby = "coding"; } public User(String name, Integer age) { this.name = name; this.age = age; this.hobby = "coding"; } public User(String name, Integer age, String hobby) { this.name = name; this.age = age; this.hobby = hobby; } public Integer getAge() { return age; } public String getHobby() { return hobby; } public String getName() { return name; } public void setAge(Integer age) { this.age = age; } public void setHobby(String hobby) { this.hobby = hobby; } public void setName(String name) { this.name = name; } @Override public String toString() { return "User{" + "name='" + name + '\'' + ", age=" + age + ", hobby='" + hobby + '\'' + '}'; }}
服務端接收
@Controller@RequestMapping("/test")public class TestController { @RequestMapping(value = "/user", method = RequestMethod.POST) // 控制器會自動實例化參數 public String user(User user) { System.out.println(user); return "redirect:/test/user"; } @RequestMapping(value = "/user", method = RequestMethod.GET) public String user() { return "form"; }}
看完上述內容,你們掌握怎么解析SpringMVC接受表單自動封裝特性實例的方法了嗎?如果還想學到更多技能或想了解更多相關內容,歡迎關注億速云行業資訊頻道,感謝各位的閱讀!
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