spring-web-modules/spring-mvc-java/src/main/java/com/baeldung/pathvariable/PathVariableAnnotationController.java - master - NikolayIvkin/tutorials1

spring-web-modules/spring-mvc-java/src/main/java/com/baeldung/pathvariable/PathVariableAnnotationController.java

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package com.baeldung.pathvariable;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.util.Map;
import java.util.Optional;

@RestController
public class PathVariableAnnotationController {
    @GetMapping("/api/employees/{id}")
    @ResponseBody
    public String getEmployeesById(@PathVariable String id) {
        return "ID: " + id;
    }

    @GetMapping("/api/employeeswithvariable/{id}")
    @ResponseBody
    public String getEmployeesByIdWithVariableName(@PathVariable("id") String employeeId) {
        return "ID: " + employeeId;
    }

    @GetMapping("/api/employees/{id}/{name}")
    @ResponseBody
    public String getEmployeesByIdAndName(@PathVariable String id, @PathVariable String name) {
        return "ID: " + id + ", name: " + name;
    }

    @GetMapping("/api/employeeswithmapvariable/{id}/{name}")
    @ResponseBody
    public String getEmployeesByIdAndNameWithMapVariable(@PathVariable Map<String, String> pathVarsMap) {
        String id = pathVarsMap.get("id");
        String name = pathVarsMap.get("name");
        if (id != null && name != null) {
            return "ID: " + id + ", name: " + name;
        } else {
            return "Missing Parameters";
        }
    }

    @GetMapping(value = { "/api/employeeswithrequired", "/api/employeeswithrequired/{id}" })
    @ResponseBody
    public String getEmployeesByIdWithRequired(@PathVariable String id) {
        return "ID: " + id;
    }

    @GetMapping(value = { "/api/employeeswithrequiredfalse", "/api/employeeswithrequiredfalse/{id}" })
    @ResponseBody
    public String getEmployeesByIdWithRequiredFalse(@PathVariable(required = false) String id) {
        if (id != null) {
            return "ID: " + id;
        } else {
            return "ID missing";
        }
    }

    @GetMapping(value = { "/api/employeeswithoptional", "/api/employeeswithoptional/{id}" })
    @ResponseBody
    public String getEmployeesByIdWithOptional(@PathVariable Optional<String> id) {
        if (id.isPresent()) {
            return "ID: " + id.get();
        } else {
            return "ID missing";
        }
    }

    @GetMapping(value = { "/api/defaultemployeeswithoptional", "/api/defaultemployeeswithoptional/{id}" })
    @ResponseBody
    public String getDefaultEmployeesByIdWithOptional(@PathVariable Optional<String> id) {
        if (id.isPresent()) {
            return "ID: " + id.get();
        } else {
            return "ID: Default Employee";
        }
    }

    @GetMapping(value = { "/api/employeeswithmap/{id}", "/api/employeeswithmap" })
    @ResponseBody
    public String getEmployeesByIdWithMap(@PathVariable Map<String, String> pathVarsMap) {
        String id = pathVarsMap.get("id");
        if (id != null) {
            return "ID: " + id;
        } else {
            return "ID missing";
        }
    }
}