code samples for BAEL-1789 Returning JSON object from a servlet

javax-servlets/src/main/java/com/baeldung/model/Employee.java

@@ -0,0 +1,72 @@
+package com.baeldung.model;
+
+public class Employee {
+	
+	private int id;
+    private String name;
+    private String department;
+    private Double salary;
+	
+    public Employee(int id, String name, String department, Double salary) {
+		super();
+		this.id = id;
+		this.name = name;
+		this.department = department;
+		this.salary = salary;
+	}
+
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = prime * result + id;
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		Employee other = (Employee) obj;
+		if (id != other.id)
+			return false;
+		return true;
+	}
+
+	public int getId() {
+		return id;
+	}
+	
+    public void setId(int id) {
+		this.id = id;
+	}
+	
+    public String getName() {
+		return name;
+	}
+	
+    public void setName(String name) {
+		this.name = name;
+	}
+	
+    public String getDepartment() {
+		return department;
+	}
+	
+    public void setDepartment(String department) {
+		this.department = department;
+	}
+	
+    public Double getSalary() {
+		return salary;
+	}
+	
+    public void setSalary(Double salary) {
+		this.salary = salary;
+	}
+	
+}

javax-servlets/src/main/java/com/baeldung/servlets/EmployeeServlet.java

@@ -0,0 +1,37 @@
+package com.baeldung.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import com.baeldung.model.Employee;
+import com.google.gson.Gson;
+
+
+@WebServlet(name = "EmployeeServlet", urlPatterns = "/employeeServlet")
+public class EmployeeServlet extends HttpServlet {
+	
+	@Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response)
+      throws IOException {
+
+		int id = Integer.parseInt(request.getParameter("id"));
+        String name = request.getParameter("name");
+        String department = request.getParameter("department");
+        Double salary = Double.parseDouble(request.getParameter("salary"));
+        
+        Employee employee = new Employee(id, name, department, salary);
+        
+        PrintWriter out = response.getWriter();
+        String employeeJsonString = new Gson().toJson(employee);
+        response.setContentType("application/json");
+        response.setCharacterEncoding("UTF-8");
+        out.print(employeeJsonString);
+        out.flush();   
+	}
+
+}