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[英]PostMapping Service Rest with Spring boot error Request method 'POST' not supported
[英]Spring Boot Rest Service | Request method 'GET' not supported
我使用彈簧靴做了一個hello world rest服務。 我可以通過獨立的java程序調用該服務。 我也可以通過Chrome的Advanced Rest Client插件來調用它。
但是,當我嘗試使用jQuery AJAX通過獨立的HTML頁面訪問它時,我收到錯誤
WARN 3748 --- [nio-9000-exec-2] osweb.servlet.PageNotFound:不支持請求方法'GET'
任何幫助表示贊賞。
PS:我假設因為我可以使用其他模式調用WebService,所以控制器很好。 但是我從HTML中調用它的方式出了問題。
HTML頁面如下:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1"> <title>Client</title> <script type="text/javascript" src="jquery-2.2.3.js"> </script> <script type="text/javascript"> $(document).ready(function() { $("#Submit").click(function() { var input = { "name": $("#name").val(), "language": $("#language").val() }; var inputStr = JSON.stringify(input); alert(inputStr); $.ajax({ url: "http://localhost:9000/rest/greetMeObj/", method: "POST", data: inputStr, dataType: "jsonp", success: function(output) { // callback method for further manipulations var str = JSON.stringify(output); $("#output").text(data); }, error: function(data) { // if error occured $("#error").text(data); } }); }); }); </script> </head> <body> <div id="input"> <label><b>Name:</b> </label> <input type="text" name="name" id="name" alt="Enter you name" title="Enter your name" /> <br /> <br /> <label><b>Language:</b> </label> <select name="language" id="language" title="Select your language"> <option value="en" label="English" selected="selected">English</option> <option value="fr" label="French">French</option> <option value="nl" label="Dutch">Dutch</option> </select> <br /> <br /> <button title="Submit" type="button" name="Submit" id="Submit" value="Submit" formaction="POST">Submit</button> </div> <div id="output"></div> <div id="error" style="color: red;"></div> </body> </html>
彈簧控制器如下
@Controller
@RequestMapping("/rest/*")
public class GreetingController {
private static final String TEMPLATE_EN = "Hello, %s!";
private static final String TEMPLATE_FR = "Bonjour, %s!";
private static final String TEMPLATE_NL = "Hallo, %s!";
private final AtomicLong counter = new AtomicLong();
@RequestMapping(value="/rest/greetMe", method= RequestMethod.GET)
public @ResponseBody Greeting sayHello(
@RequestParam(value = "name", required = false, defaultValue = "Stranger") String name,
@RequestParam(value = "language", required = false, defaultValue = "en") String language) {
return new Greeting(counter.incrementAndGet(), String.format(getTemplate(language), name));
}
@RequestMapping(value="/rest/greetMeObj", method= RequestMethod.POST)
public @ResponseBody Greeting sayHello(
@RequestBody(required = true) Input input) {
return new Greeting(counter.incrementAndGet(),
String.format(getTemplate(input.getLanguage()), input.getName()));
}
private String getTemplate(String language) {
String template;
switch (language) {
case "nl":
case "NL":
template = TEMPLATE_NL;
break;
case "fr":
case "FR":
template = TEMPLATE_FR;
break;
case "en":
case "EN":
default:
template = TEMPLATE_EN;
break;
}
return template;
}
}
我想解決方案在這里描述: 為什么不支持SpringMVC Request方法'GET'?
RequestMapping中的兩個值必須相同。 因此,對於每個值,您必須為GET定義一個值,為POST定義一個值。
@RequestMapping(value="/rest/greetMe", method= RequestMethod.GET)
public @ResponseBody Greeting sayHello(
@RequestParam(value = "name", required = false, defaultValue = "Stranger") String name,
@RequestParam(value = "language", required = false, defaultValue = "en") String language) {
return new Greeting(counter.incrementAndGet(), String.format(getTemplate(language), name));
}
@RequestMapping(value="/rest/greetMe", method= RequestMethod.POST)
public @ResponseBody Greeting sayHello(
@RequestBody(required = true) Input input) {
return new Greeting(counter.incrementAndGet(),
String.format(getTemplate(input.getLanguage()), input.getName()));
}
檢查控制器,如果已將任何這些調用映射到默認映射:
@DeleteMapping()
@PostMapping()
@GetMapping()
它映射到path="/"
。 請改成它
@DeleteMapping(path="/something")
@PostMapping(path="/something")
@GetMapping(path="/something")
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