JERSEY - 将javax.ws.rs.core.Response作为JSON对象返回，并带有错误：...或令牌：
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编辑：有没有办法返回一个简单的对象，该对象具有：
- 代币
- 错误
- 错误和细节
......无需创建新对象。什么是最有效和最容易理解的方法？
我正在尝试创建一个@Consumes(MediaType.APPLICATION_JSON)（包含登录凭据：用户名，密码，消费者（布尔））的登录服务。
如果凭证有效，我想在前端返回一个令牌，以及一个响应代码OK / 200;像这个JSON对象：
{"token":"aAKGKas211"}
否则我对每个案例都有特定的错误，我想返回一个不同的RESPONSE CODE，它看起来像这样：
{"error":"Invalid username or password"}
我试图将一个字符串错误（=“无效的用户名或密码”）添加到Response.Status.NOT_ACCEPTABLE）.entity（错误），但我得到的字符串不是作为JSON对象的字符串..
这是我的代码的样子：
@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();
}
编辑：
答案
在“授权”标题中传递您的令牌
基本身份验证为此问题提供了解决方案，但不是很安全。使用基本身份验证，客户端使用HTTP [授权]标头为每个请求发送它的Base64编码凭据。这意味着每个请求都独立于其他请求，并且服务器可能/不维护客户端的任何状态信息，这对于可伸缩性的观点是有利的。
HTTPS上的一句话：对于任何类型的安全实施，从基本身份验证到完全成熟的OAuth2实现，HTTPS都是必须的。如果没有HTTPS，无论您的实施是什么，安全性都很容易受到损害。
String plainClientCredentials="myusername:mypassword";
String base64ClientCredentials = new String(Base64.encodeBase64(plainClientCredentials.getBytes()));
HttpHeaders headers = getHeaders();
headers.add("Authorization", "Basic " + base64ClientCredentials);
这可能反过来产生类似的东西：
Authorization : Basic bXktdHJ1c3FOO1jbGllbnQ6c2VjcmV0...
基本身份验证和Spring安全性通过两个步骤，您可以在Spring Security配置中启用基本身份验证。 1.配置httpBasic：配置HTTP基本身份验证。 [XML中的http-basic] 2.使用BasicAuthenticationEntryPoint配置身份验证入口点：如果身份验证失败[无效/丢失凭据]，将触发此入口点。这非常重要，因为我们不希望[Spring Security默认行为]在身份验证失败时重定向到登录页面[我们没有登录页面]。
下面显示的是具有httpBasic和入口点设置的完整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, "/**");
}
}
和实际的入口点，如果身份验证失败将触发。您可以自定义它以发送自定义内容作为响应。
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();
}
}
这就是配置基本安全性所需的全部内容。现在让我们使用我们优秀的旧REST API查看所有操作
REST API Simple Spring REST API，为用户提供服务。客户端可以使用符合REST样式的标准html动词执行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);
}
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