Question

我正在创建一个执行添加功能的java Web服务。现在，我已经在我的方法中设置了默认值（firstNumber是2，secondNumber是2）所以当我运行应用程序（localhost）时，我得到{"firstNumber":2,"secondNumber":2,"sum":4}作为输出。是否有可能使用户在firstNumber和secondNumber中输入作为URL的一部分并显示总和？如何将URL设为http://localhost:8080/addition/firstNumber=2&secondNumber=2，并显示总和。我应该在AdditionController.java中添加什么？

以下是我的代码：

Addition.java

public class Addition {

private int firstNumber, secondNumber, sum;

public Addition(String firstNumber, String secondNumber) {
    this.firstNumber = Integer.parseInt(firstNumber.trim());
    this.secondNumber = Integer.parseInt(secondNumber.trim());
    updateSum();
}

public int getFirstNumber() {
    return firstNumber;
}

public void setFirstNumber(int firstNumber) {
    this.firstNumber = firstNumber;
    updateSum();
}

public int getSecondNumber() {
    return secondNumber;
}

public void setSecondNumber(int secondNumber) {
    this.secondNumber = secondNumber;
    updateSum();
}

public int getSum() {
    return sum;
}

public void updateSum() {
    this.sum = this.firstNumber + this.secondNumber;
}

@Override
public String toString() {
    return String.format("Addition [firstNumber=%d, secondNumber=%d, sum=%d%n", //
            firstNumber, secondNumber, sum);
  }
}

AdditionController.java

@RestController
public class AdditionController {

private static final String template = " %s";

@RequestMapping("/addition")
@ResponseBody 
public Addition addition ( 
        @RequestParam(value="firstNumber", defaultValue="2") String firstNumber,
        @RequestParam(value="secondNumber", defaultValue="2") String secondNumber,
        @RequestParam(value="sum", defaultValue="2") String sum){
    return new Addition(
            (String.format(template, firstNumber)), String.format(template, secondNumber)); 
   }
 }

有人请指导我应该在哪些地方进行更改。非常感谢你。

Answer 1

您可以使用pathparam通过url发送int1和int2，并在服务器端提取它。 url: http:localhost:port/appname/path/param1/param2 server end: @GET @Path("{param1}/{param2}") public Response getSum(@PathParam("param1") int A,@PathParam("param2") int B)

用户输入作为URL的一部分

1 个答案: