How can I test the JSON string in the browser without going through the steps of downloading the json file as the File Download dialog pops up when I run the servlet, then viewing the downloaded json file in the browser.
below is the screen shot of postman - postman returns a 404
below is the web.xml for mapping
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<!-- General Description of the web application -->
<display-name>webData</display-name>
<description>data managed in web data table grid</description>
<!-- For directory request -->
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- Define servlets -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>queryreturn</servlet-name>
<servlet-class>com.queryData.Return.QueryReturn</servlet-class>
</servlet>
<!-- Note: All <servlet> elements MUST be grouped together and
placed IN FRONT of the <servlet-mapping> elements -->
<!-- Define servlet's URL mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>queryreturn</servlet-name>
<url-pattern>/queryreturn</url-pattern>
</servlet-mapping>
<context-param>
<description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
<param-value>resources.application</param-value>
</context-param>
<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
</web-app>
below is the bean that generates the JSON string successfully but won't run in the browser
package com.queryData.Return;
//Import required java libraries
import java.io.*;
import java.util.List;
import javax.servlet.*;
import javax.servlet.http.*;
import org.json.JSONObject;
import com.queryData.main.Main;
// Extend HttpServlet class
public class QueryReturn extends HttpServlet
{
private static final long serialVersionUID = 1L;
public void init() throws ServletException
{
// Do required initialization
}
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
Main m = new Main();
List<JSONObject> jObj = m.getJsonObject();
StringBuilder sb = new StringBuilder();
for(int i =0 ; i < jObj.size(); i++)
{
sb.append(jObj.get(i).toString());
}
String responseStr = "{\"data\":[" + sb + "]}";
// Set response content type
response.setContentType("application/json");
// Actual logic goes here.
PrintWriter out = response.getWriter();
out.println(responseStr);
}
public void destroy()
{
// do nothing.
}
}
