Java tutorial
/******************************************************************************* * Copyright (c) 2005, 2014 springside.github.io * * Licensed under the Apache License, Version 2.0 (the "License"); *******************************************************************************/ package com.iscas.rent.rest; import java.net.URI; import java.sql.Date; import java.util.ArrayList; import java.util.List; import javax.validation.Validator; import org.apache.shiro.SecurityUtils; import org.json.JSONException; import org.json.JSONObject; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.ui.Model; 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.RequestParam; import org.springframework.web.bind.annotation.ResponseStatus; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.util.UriComponentsBuilder; import org.springside.modules.beanvalidator.BeanValidators; import org.springside.modules.web.MediaTypes; import com.iscas.rent.entity.ImMsg; import com.iscas.rent.entity.Task; import com.iscas.rent.service.account.ShiroDbRealm.ShiroUser; import com.iscas.rent.service.task.ImMsgService; import com.iscas.rent.service.task.TaskService; /** * TaskRestful APIController. * * @author calvin */ @RestController @RequestMapping(value = "/api/v1/task") public class TaskRestController { private static Logger logger = LoggerFactory.getLogger(TaskRestController.class); @Autowired private TaskService taskService; @Autowired private ImMsgService imMsgService; @Autowired private Validator validator; @RequestMapping(method = RequestMethod.GET, produces = MediaTypes.JSON_UTF_8) public List<Task> list(Model model) { return taskService.getAllTask(); } @RequestMapping(value = "/{id}", method = RequestMethod.GET, produces = MediaTypes.JSON_UTF_8) public Task get(@PathVariable("id") Long id) { Task task = taskService.getTask(id); if (task == null) { String message = "?(id:" + id + ")"; logger.warn(message); throw new RestException(HttpStatus.NOT_FOUND, message); } return task; } @RequestMapping(value = "data", method = RequestMethod.POST, produces = MediaTypes.JSON_UTF_8) public String send(@RequestParam(value = "id") Long toid, @RequestParam(value = "content") String content, @RequestParam(value = "sign_key", defaultValue = "1") int sign_key, @RequestParam(value = "time") Long timestamp, Model model) throws JSONException { JSONObject data = new JSONObject(); Date time = new Date(timestamp); data.put("id", toid); data.put("conent", content); data.put("sign_key", sign_key); data.put("time", time); ImMsg imMsg = new ImMsg(); imMsg.setFromid(getCurrentUserId()); imMsg.setToid(toid); imMsg.setBody(content); imMsg.setTime(time); imMsg.setStatus((short) 0); imMsgService.saveImMsg(imMsg); return data.toString(); } @RequestMapping(value = "get", method = RequestMethod.GET, produces = MediaTypes.JSON_UTF_8) public ArrayList<ImMsg> refatch(@RequestParam(value = "fromid") Long fromid, Model model) throws JSONException { ArrayList<ImMsg> msgList = (ArrayList<ImMsg>) imMsgService.getByBoth(fromid, getCurrentUserId()); return msgList; } @RequestMapping(method = RequestMethod.POST, consumes = MediaTypes.JSON) public ResponseEntity<?> create(@RequestBody Task task, UriComponentsBuilder uriBuilder) { // JSR303 Bean Validator, RestExceptionHandler?. BeanValidators.validateWithException(validator, task); // ? taskService.saveTask(task); // Restful?url, ?id. Long id = task.getId(); URI uri = uriBuilder.path("/api/v1/task/" + id).build().toUri(); HttpHeaders headers = new HttpHeaders(); headers.setLocation(uri); return new ResponseEntity(headers, HttpStatus.CREATED); } @RequestMapping(value = "/{id}", method = RequestMethod.PUT, consumes = MediaTypes.JSON) // Restful204??, . ?200??. @ResponseStatus(HttpStatus.NO_CONTENT) public void update(@RequestBody Task task) { // JSR303 Bean Validator, RestExceptionHandler?. BeanValidators.validateWithException(validator, task); // ? taskService.saveTask(task); } @RequestMapping(value = "/{id}", method = RequestMethod.DELETE) @ResponseStatus(HttpStatus.NO_CONTENT) public void delete(@PathVariable("id") Long id) { taskService.deleteTask(id); } /** * ?Shiro?Id. */ private Long getCurrentUserId() { ShiroUser user = (ShiroUser) SecurityUtils.getSubject().getPrincipal(); return user.id; } }