issue

Why do I get the response code 200 when request sent from Postman to Tomcat server in my project. but get 404 in another project?

To my project `HealthHelper`

In my project HealthHelper,

I ran the Tomcat Server first.
I sent a request with following url and raw data from Postman to Tomcat Server v9.0.
I receive the request and handles it with Java code with javax.servlet package.

url

http://localhost:8080/HealthHelper/dietDiary/query/byTime

raw data

{"diaryId":2,"userId":2,"createDate":"2021-12-26","createTime":"00:00:00",  "totalFat":2.52,"totalCarbon":2.3,"totalProtein":2.1,"totalFiber":2.1,"totalSugar":1.2,"totalSodium":1.1,"totalCalories":1.21 }

output in Eclipse Console

Then I get output in Eclipse Console that I expected.

Ready to deserialize.dietDiary:DietDiary [diaryId=2, userId=2, createDate=2021-12-26, createTime=00:00:00, totalFat=2.52, totalCarbon=2.3, totalProtein=2.1, totalFiber=2.1, totalSugar=1.2, totalSodium=1.1, totalCalories=1.21]

Code

Here is /HealthHelper/src/main/java/web/dietdiary/controller/QueryDietDiaryByDateAndTimeController.java in my project.

package web.dietdiary.controller;import java.io.IOException;import java.sql.Date;import java.sql.Time;import java.sql.Timestamp;import java.util.ArrayList;import javax.naming.NamingException;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.google.gson.Gson;import com.google.gson.GsonBuilder;import com.google.gson.JsonObject;import web.dietdiary.constant.SqlDatePattern;import web.dietdiary.service.impl.DietDiaryService;import web.dietdiary.service.impl.DietDiaryServiceImpl;import web.dietdiary.util.datetime.DateTimeHandler;import web.dietdiary.util.datetime.DateTimeHandlerImpl;import web.dietdiary.util.gson.GsonForSqlDateAndSqlTime;import web.dietdiary.vo.DietDiary;@WebServlet("/dietDiary/query/byTime")public class QueryDietDiaryByDateAndTimeController extends HttpServlet {    private static final long serialVersionUID = 1L;    private DietDiaryService dietDiaryService;    @Override    public void init() throws ServletException {        try {            this.dietDiaryService = new DietDiaryServiceImpl(null);        } catch (NamingException e) {            e.printStackTrace();        }    }    @Override     protected void doGet(HttpServletRequest req,HttpServletResponse res) throws IOException{        Gson gson = GsonForSqlDateAndSqlTime.gson;        JsonObject jsonObject = new JsonObject();        String errorMessage = "";        String result = "";        int affectedRow = 0;        ArrayList<DietDiary> dietDiaries = new ArrayList<DietDiary>();        DietDiary dietDiary = gson.fromJson(req.getReader(), DietDiary.class);        System.out.println("Ready to deserialize.");        System.out.println("dietDiary:"+dietDiary);        dietDiaries = this.dietDiaryService.search(dietDiary,2);        if(dietDiaries == null) {            errorMessage = "Unknown error!!!";            affectedRow = -1;            jsonObject.addProperty("result", false);            jsonObject.addProperty("affectedRow", affectedRow);            jsonObject.addProperty("errorMessage", errorMessage);            res.getWriter().write(jsonObject.toString());            return;        }        if(dietDiaries.isEmpty()){            errorMessage = "";            result = "not found.";            affectedRow = 0;            jsonObject.addProperty("result", result);            jsonObject.addProperty("affectedRow", affectedRow);            jsonObject.addProperty("errorMessage", errorMessage);            res.getWriter().write(jsonObject.toString());            return;        }        result = "";        result += "[";        result += "\n";        for(int i=0;i<dietDiaries.size();i++) {            DietDiary tempDietDiary = dietDiaries.get(i);            result +=  tempDietDiary.toString();            result += "\n";        }        result += "]";        result += "\n";        affectedRow = dietDiaries.size();         errorMessage = "";        jsonObject.addProperty("result", result);        jsonObject.addProperty("affectedRow", affectedRow);        jsonObject.addProperty("errorMessage", errorMessage);        res.getWriter().write(jsonObject.toString());        return;    }}

other info

project facet

Java Build Path

To other project `HealthHelperServer` (which is created by other members of the group)

A few days ago, I copy and pasted the QueryDietDiaryByTimeController.java from QueryDietDiaryByTimeController.java (full qualified name is /HealthHelper/src/main/java/web/dietdiary/controller/QueryDietDiaryByTimeController.java) in my project to QueryDietDiaryByTimeController.java (full qualified name is /HealthyHelperServer/src/main/java/web/dietdiary/controller/QueryDietDiaryByDateAndTimeController.java)in other project.

In other project HealthHelperServer, I do same thing to in other project.

I ran the Tomcat Server first.
I sent a request with following url and raw data from Postman to Tomcat Server v9.0.
I receive the request and handles it with Java code with javax.servlet package.

url

http://localhost:8080/HealthHelperServer/dietDiary/query/byTime

raw data

{"diaryId":2,"userId":2,"createDate":"2021-12-26","createTime":"00:00:00",  "totalFat":2.52,"totalCarbon":2.3,"totalProtein":2.1,"totalFiber":2.1,"totalSugar":1.2,"totalSodium":1.1,"totalCalories":1.21 }

output in Eclipse Console

Then I get nothing in Eclipse Console.

But I got a 404 NOT found error in Postman.

Body

<!doctype html><html lang="en"><head><title>HTTP Status 404 – Not Found</title><style type="text/css">        body {            font-family: Tahoma, Arial, sans-serif;        }        h1,        h2,        h3,        b {            color: white;            background-color: #525D76;        }        h1 {            font-size: 22px;        }        h2 {            font-size: 16px;        }        h3 {            font-size: 14px;        }        p {            font-size: 12px;        }        a {            color: black;        }        .line {            height: 1px;            background-color: #525D76;            border: none;        }</style></head><body><h1>HTTP Status 404 – Not Found</h1><hr class="line" /><p><b>Type</b> Status Report</p><p><b>Message</b> The requested resource [&#47;HealthHelperServer&#47;dietDiary&#47;query&#47;byTime] is not        available</p><p><b>Description</b> The origin server did not find a current representation for the target resource or is not        willing to disclose that one exists.</p><hr class="line" /><h3>Apache Tomcat/9.0.89</h3></body></html>

Code

Here is /HealthyHelperServer/src/main/java/web/dietdiary/controller/QueryDietDiaryByDateAndTimeController.java in other project.

package web.dietdiary.controller;import java.io.IOException;import java.sql.Date;import java.sql.Time;import java.sql.Timestamp;import java.util.ArrayList;import javax.naming.NamingException;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.google.gson.Gson;import com.google.gson.GsonBuilder;import com.google.gson.JsonObject;import web.dietdiary.constant.SqlDatePattern;import web.dietdiary.service.impl.DietDiaryService;import web.dietdiary.service.impl.DietDiaryServiceImpl;import web.dietdiary.util.datetime.DateTimeHandler;import web.dietdiary.util.datetime.DateTimeHandlerImpl;import web.dietdiary.util.gson.GsonForSqlDateAndSqlTime;import web.dietdiary.vo.DietDiary;@WebServlet("/dietDiary/query/byTime")public class QueryDietDiaryByDateAndTimeController extends HttpServlet {    private static final long serialVersionUID = 1L;    private DietDiaryService dietDiaryService;    @Override    public void init() throws ServletException {        try {            this.dietDiaryService = new DietDiaryServiceImpl(null);        } catch (NamingException e) {            e.printStackTrace();        }    }    @Override     protected void doGet(HttpServletRequest req,HttpServletResponse res) throws IOException{        Gson gson = GsonForSqlDateAndSqlTime.gson;        JsonObject jsonObject = new JsonObject();        String errorMessage = "";        String result = "";        int affectedRow = 0;        ArrayList<DietDiary> dietDiaries = new ArrayList<DietDiary>();        DietDiary dietDiary = gson.fromJson(req.getReader(), DietDiary.class);        System.out.println("Ready to deserialize.");        System.out.println("dietDiary:"+dietDiary);        dietDiaries = this.dietDiaryService.search(dietDiary,2);        if(dietDiaries == null) {            errorMessage = "Unknown error!!!";            affectedRow = -1;            jsonObject.addProperty("result", false);            jsonObject.addProperty("affectedRow", affectedRow);            jsonObject.addProperty("errorMessage", errorMessage);            res.getWriter().write(jsonObject.toString());            return;        }        if(dietDiaries.isEmpty()){            errorMessage = "";            result = "not found.";            affectedRow = 0;            jsonObject.addProperty("result", result);            jsonObject.addProperty("affectedRow", affectedRow);            jsonObject.addProperty("errorMessage", errorMessage);            res.getWriter().write(jsonObject.toString());            return;        }        result = "";        result += "[";        result += "\n";        for(int i=0;i<dietDiaries.size();i++) {            DietDiary tempDietDiary = dietDiaries.get(i);            result +=  tempDietDiary.toString();            result += "\n";        }        result += "]";        result += "\n";        affectedRow = dietDiaries.size();         errorMessage = "";        jsonObject.addProperty("result", result);        jsonObject.addProperty("affectedRow", affectedRow);        jsonObject.addProperty("errorMessage", errorMessage);        res.getWriter().write(jsonObject.toString());        return;    }}

other infos

project facets

Java Build Path

I don't know why?

Appreciation

Any replies or tips about this issue will be appreciated.

What did I try?

First, I have checked

the two code are same.
can successfully run the Tomcat Server v9.0.
the version of Tomcat Server and its related tools.
Check the project facet of two projects.
Check the url of (two requests sent above) are correct.

I have read these articles.

receive 404 error from post request: postman

------ 1st Edit -------

Is the issue caused by?

Different version of Java in project facet
Different the module path

------- 2nd Edit ------------

I have changed version Java in project facet to 12 of HealthHelper.java project (which is same as that in HealthHelperServer).

And I will still get a response code 200. Same as previous result when version Java in project facet is 1.8.

Thus, I wonder that the issue is NOT related to Java in project facet.

issue

To my project HealthHelper

url

raw data

output in Eclipse Console

Code

other info

project facet

Java Build Path

To other project HealthHelperServer (which is created by other members of the group)

url

raw data

output in Eclipse Console

Body

Code

other infos

project facets

Java Build Path

Appreciation

What did I try?

Is the issue caused by?

Trending Articles

To my project `HealthHelper`

To other project `HealthHelperServer` (which is created by other members of the group)