Failed to convert value of type 'java.lang.String' to required type 'java.lang.Integer'
Question
I'm trying to create a simple spring web app. And i encountered an error while executing POST method. When i go to url to which my post method is mapped i'm getting the following error:
Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback.
Wed Jan 19 20:57:38 EET 2022 There was an unexpected error (type=Bad Request, status=400).
I have an html form where user can enters data, from which an object is created and added to the db (for ui templates i use Mustache)
Also, the error in console is the following:
.wsmsDefaultHandlerExceptionResolver: Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.lang.Integer'; nested exception is java.lang.NumberFormatException: For input string: "charity"]
here's my Controller:
@RequestMapping("/share")
@Controller
public class CharityController {
@Autowired
private CharityServiceImpl charityService;
@PostMapping("charities/charity")
public String addCharity(@RequestBody Charity charity){
charityService.save(charity);
return "addForm";
}
html form:
<!DOCTYPE HTML>
<html>
<head>
<title>Add New Charity</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div>
<form method="post" action="charities/charity">
<input type="number" name="id" placeholder="Id"/>
<input type="text" name="name" placeholder="Charity name"/>
<input type="text" name="description" placeholder="Description"/>
<button type="submit">Add</button>
</form>
</div>
</body>
</html>
Entity class:
@Entity
public class Charity {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
@NotBlank
private String name;
@NotBlank
private String description;
public Charity(Integer id, String name, String description) {
this.id = id;
this.name = name;
this.description = description;
}
public Charity() {
}
public Integer getId() {
return id;
}
public String getName() {
return name;
}
public String getDescription() {
return description;
}
DAO method:
public void save(Charity charity) {
Session session = sessionFactory.openSession();
session.beginTransaction();
session.saveOrUpdate(charity);
session.getTransaction().commit();
session.close();
}
Service implementation:
public void save(Charity charity){
charityDao.save(charity);
}
1 answers
solution1
1 2022-01-20 04:22:09
@PostMapping("charities/charity")
public String addCharity(@Valid @RequestBody Charity charity){
charityService.save(charity);
return "addForm";
}
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