JERSEY-將javax.ws.rs.core.Response作為JSON對象返回，錯誤為：…或令牌：

Question

編輯：有沒有辦法返回具有以下任一條件的簡單對象：

代幣
錯誤
錯誤和 詳細信息

...而無需創建新對象。 什么是最有效和最容易理解的方法？

我正在嘗試提供一個@Consumes(MediaType.APPLICATION_JSON)的登錄服務（包含登錄憑據：用戶名，密碼，consumer（boolean））。

如果憑據有效，我想返回一個令牌，以備將來在前端使用，並返回一個響應代碼 OK / 200 ； 類似於以下JSON對象：

{"token":"aAKGKas211"}

否則，在每種情況下我都會遇到特定的錯誤，我想返回一個不同的RESPONSE CODE ，它看起來像這樣：

{"error":"Invalid username or password"}

我試圖向Response.Status.NOT_ACCEPTABLE）.entity（error）添加一個字符串錯誤（=“無效的用戶名或密碼”），但是我將字符串作為字符串而不是作為JSON對象。

這是我的代碼的樣子：

@POST
@Path("/login")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public Response login(@Context HttpServletRequest req, LoginInfo loginInfo) {
    CouponClientFacade facade = null;
    String token = null, error = null;

    // validate the REQUESTer's token, if he is already logged in return ERROR RESPONSE.
    System.out.println(loginInfo);
    System.out.println(req.getSession().getId());
    if (loginInfo == null)
        return Response.ok("Test").build();
    if (validateCredentials(loginInfo))
        return Response.status(Response.Status.NOT_ACCEPTABLE).entity("Invalid username or password").build();


    try { // Try to login into administrator
        facade = ClientType.ADMIN.login(loginInfo.getUsername(), loginInfo.getPassword());
    } catch (Exception E) { // Couldn't login into administrator
        try {
            if (loginInfo.isCustomer()) // Try to login into CUSTOMER account
                facade = ClientType.CUSTOMER.login(loginInfo.getUsername(), loginInfo.getPassword());
            else // Try to login into COMPANY account
                facade = ClientType.COMPANY.login(loginInfo.getUsername(), loginInfo.getPassword());

        } catch (BadUsernamePassword e) {
            return Response.status(Response.Status.FORBIDDEN).entity(error=e.getMessage()).build();
        } catch (UnexpectedError e) {
            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(error=e.getMessage()).build();
        }
    }
    if (facade != null) {
        token = SessionManager.generateToken(req.getSession().getId(), facade);
        return Response.ok(token).build();
    } else return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(error="111").build();
}

編輯：

Answer 1

在“授權”標題中傳遞令牌

盡管不是很安全，但是基本身份驗證為該問題提供了解決方案。 借助基本身份驗證，客戶端將使用HTTP [Authorization]標頭隨每個請求發送其Base64編碼的憑據。 這意味着每個請求都獨立於其他請求，並且服務器可能/不為客戶端維護任何狀態信息，這從可伸縮性的角度來看是有益的。

HTTPS簡介：從基本身份驗證到成熟的OAuth2實現，對於任何類型的安全性實現，HTTPS都是必須具備的。 沒有HTTPS，無論您的實現是什么，安全性都容易受到損害。

String plainClientCredentials="myusername:mypassword";
String base64ClientCredentials = new String(Base64.encodeBase64(plainClientCredentials.getBytes()));

HttpHeaders headers = getHeaders();
headers.add("Authorization", "Basic " + base64ClientCredentials);

反過來可能會產生類似以下內容：

Authorization : Basic bXktdHJ1c3FOO1jbGllbnQ6c2VjcmV0...

基本身份驗證和Spring Security通過兩個步驟，您可以在Spring Security Configuration中啟用基本身份驗證。 1.配置httpBasic：配置HTTP基本身份驗證。 [XML中的http-basic] 2.使用BasicAuthenticationEntryPoint配置身份驗證入口點：如果身份驗證失敗[無效/缺少憑據]，將觸發此入口點。 這非常重要，因為我們不希望[Spring Security默認行為]在身份驗證失敗時重定向到登錄頁面[我們沒有登錄頁面]。

下面顯示的是帶有httpBasic和入口點設置的完整Spring Security配置。

package com.websystique.springmvc.security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;

@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    private static String REALM="MY_TEST_REALM";

    @Autowired
    public void configureGlobalSecurity(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().withUser("bill").password("abc123").roles("ADMIN");
        auth.inMemoryAuthentication().withUser("tom").password("abc123").roles("USER");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {

      http.csrf().disable()
        .authorizeRequests()
        .antMatchers("/user/**").hasRole("ADMIN")
        .and().httpBasic().realmName(REALM).authenticationEntryPoint(getBasicAuthEntryPoint())
        .and().sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);//We don't need sessions to be created.
    }

    @Bean
    public CustomBasicAuthenticationEntryPoint getBasicAuthEntryPoint(){
        return new CustomBasicAuthenticationEntryPoint();
    }

    /* To allow Pre-flight [OPTIONS] request from browser */
    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers(HttpMethod.OPTIONS, "/**");
    }
}

以及實際的入口點，如果身份驗證失敗，它將被觸發。 您可以對其進行自定義以發送自定義內容作為響應。

package com.websystique.springmvc.security;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.www.BasicAuthenticationEntryPoint;

public class CustomBasicAuthenticationEntryPoint extends BasicAuthenticationEntryPoint {

    @Override
    public void commence(final HttpServletRequest request, 
            final HttpServletResponse response, 
            final AuthenticationException authException) throws IOException, ServletException {
        //Authentication failed, send error response.
        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        response.addHeader("WWW-Authenticate", "Basic realm=" + getRealmName() + "");

        PrintWriter writer = response.getWriter();
        writer.println("HTTP Status 401 : " + authException.getMessage());
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        setRealmName("MY_TEST_REALM");
        super.afterPropertiesSet();
    }
}

這就是配置基本安全性所需的全部。 現在，讓我們通過良好的舊REST API來了解一切

REST API簡單的Spring REST API，可為用戶提供服務。 客戶端可以使用符合REST風格的標准HTML動詞執行CRUD操作。

package com.websystique.springmvc.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.util.UriComponentsBuilder;

import com.websystique.springmvc.model.User;
import com.websystique.springmvc.service.UserService;

@RestController
public class HelloWorldRestController {

    @Autowired
    UserService userService;  //Service which will do all data retrieval/manipulation work


    //-------------------Retrieve All Users--------------------------------------------------------

    @RequestMapping(value = "/user/", method = RequestMethod.GET)
    public ResponseEntity<List<User>> listAllUsers() {
        List<User> users = userService.findAllUsers();
        if(users.isEmpty()){
            return new ResponseEntity<List<User>>(HttpStatus.NO_CONTENT);//You many decide to return HttpStatus.NOT_FOUND
        }
        return new ResponseEntity<List<User>>(users, HttpStatus.OK);
    }


    //-------------------Retrieve Single User--------------------------------------------------------

    @RequestMapping(value = "/user/{id}", method = RequestMethod.GET, produces = {MediaType.APPLICATION_JSON_VALUE,MediaType.APPLICATION_XML_VALUE})
    public ResponseEntity<User> getUser(@PathVariable("id") long id) {
        System.out.println("Fetching User with id " + id);
        User user = userService.findById(id);
        if (user == null) {
            System.out.println("User with id " + id + " not found");
            return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
        }
        return new ResponseEntity<User>(user, HttpStatus.OK);
    }



    //-------------------Create a User--------------------------------------------------------

    @RequestMapping(value = "/user/", method = RequestMethod.POST)
    public ResponseEntity<Void> createUser(@RequestBody User user, UriComponentsBuilder ucBuilder) {
        System.out.println("Creating User " + user.getName());

        if (userService.isUserExist(user)) {
            System.out.println("A User with name " + user.getName() + " already exist");
            return new ResponseEntity<Void>(HttpStatus.CONFLICT);
        }

        userService.saveUser(user);

        HttpHeaders headers = new HttpHeaders();
        headers.setLocation(ucBuilder.path("/user/{id}").buildAndExpand(user.getId()).toUri());
        return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
    }


    //------------------- Update a User --------------------------------------------------------

    @RequestMapping(value = "/user/{id}", method = RequestMethod.PUT)
    public ResponseEntity<User> updateUser(@PathVariable("id") long id, @RequestBody User user) {
        System.out.println("Updating User " + id);

        User currentUser = userService.findById(id);

        if (currentUser==null) {
            System.out.println("User with id " + id + " not found");
            return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
        }

        currentUser.setName(user.getName());
        currentUser.setAge(user.getAge());
        currentUser.setSalary(user.getSalary());

        userService.updateUser(currentUser);
        return new ResponseEntity<User>(currentUser, HttpStatus.OK);
    }

    //------------------- Delete a User --------------------------------------------------------

    @RequestMapping(value = "/user/{id}", method = RequestMethod.DELETE)
    public ResponseEntity<User> deleteUser(@PathVariable("id") long id) {
        System.out.println("Fetching & Deleting User with id " + id);

        User user = userService.findById(id);
        if (user == null) {
            System.out.println("Unable to delete. User with id " + id + " not found");
            return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
        }

        userService.deleteUserById(id);
        return new ResponseEntity<User>(HttpStatus.NO_CONTENT);
    }


    //------------------- Delete All Users --------------------------------------------------------

    @RequestMapping(value = "/user/", method = RequestMethod.DELETE)
    public ResponseEntity<User> deleteAllUsers() {
        System.out.println("Deleting All Users");

        userService.deleteAllUsers();
        return new ResponseEntity<User>(HttpStatus.NO_CONTENT);
    }

}

JERSEY-將javax.ws.rs.core.Response作為JSON對象返回，錯誤為：…或令牌：

問題描述

1 個解決方案

解決方案1
1 2018-03-03 23:22:07

JERSEY-將javax.ws.rs.core.Response作為JSON對象返回，錯誤為：…或令牌：

問題描述

1 個解決方案

解決方案1 1 2018-03-03 23:22:07

解決方案1
1 2018-03-03 23:22:07