在实际项目中我们不仅是为了写入数据而写入数据，中间有一定的逻辑，比如，我们新增一个工艺，关于工艺代号作为唯一不能重复，我们需要对业务进行逻辑判断；那么关于逻辑应该写在Service去实现。
Dao
public interface S_apscodeMapper {
//根据制程代号查询制程
S_apscode findbycode(String code);
//查询全部
List<S_apscode> findAll();
//新增
int insert(@Param(value = "s_apscode")S_apscode s_apscode);
//删除
int deletebycode(String code);
//修改
int updateById(@Param(value = "s_apscode")S_apscode s_apscode);
int update(@Param(value = "s_apscode")S_apscode s_apscode);
//分页
List<S_apscode> selectPage();
}
service
public interface S_apscodeService extends CurdService {
//根据制程代号查询制程
S_apscode findbycode(String code);
//查询全部
List<S_apscode> findAll();
//根据代号删除
HttpResult deletebycode(String code);
//添加
HttpResult insert(S_apscode s_apscode);
//更新
HttpResult update(S_apscode s_apscode);
//分页
PageResult findPage(PageRequest pageRequest);
}
serviceimpl
我们重点是把逻辑写在这里,我这里通过返回消息给前端处理
@Override
public S_apscode findbycode(String code) throws RuntimeException {
return s_apscodeMapper.findbycode(code);
}
@Override
public HttpResult insert(@Param(value = "s_apscode") S_apscode s_apscode) {
HttpResult httpResult=new HttpResult();
S_apscode s_apscode1=findbycode(s_apscode.getK_code());
if (null!=s_apscode1){
httpResult.setCode(203);
httpResult.setMsg("Error:制程代号重复");
httpResult.setData(null);
}
else
{
if(s_apscodeMapper.insert(s_apscode)>0){
httpResult.setCode(200);
httpResult.setMsg("sucess");
httpResult.setData(s_apscode);
}
};
return httpResult;
}
附
相关类与接口
package com.cm.aps.util;
public interface HttpStatus {
/** {@code 100 Continue} (HTTP/1.1 - RFC 2616) */
public static final int SC_CONTINUE = 100;
/** {@code 101 Switching Protocols} (HTTP/1.1 - RFC 2616)*/
public static final int SC_SWITCHING_PROTOCOLS = 101;
/** {@code 102 Processing} (WebDAV - RFC 2518) */
public static final int SC_PROCESSING = 102;
// --- 2xx Success ---
/** {@code 200 OK} (HTTP/1.0 - RFC 1945) */
public static final int SC_OK = 200;
/** {@code 201 Created} (HTTP/1.0 - RFC 1945) */
public static final int SC_CREATED = 201;
/** {@code 202 Accepted} (HTTP/1.0 - RFC 1945) */
public static final int SC_ACCEPTED = 202;
/** {@code 203 Non Authoritative Information} (HTTP/1.1 - RFC 2616) */
public static final int SC_NON_AUTHORITATIVE_INFORMATION = 203;
/** {@code 204 No Content} (HTTP/1.0 - RFC 1945) */
public static final int SC_NO_CONTENT = 204;
/** {@code 205 Reset Content} (HTTP/1.1 - RFC 2616) */
public static final int SC_RESET_CONTENT = 205;
/** {@code 206 Partial Content} (HTTP/1.1 - RFC 2616) */
public static final int SC_PARTIAL_CONTENT = 206;
/**
* {@code 207 Multi-Status} (WebDAV - RFC 2518)
* or
* {@code 207 Partial Update OK} (HTTP/1.1 - draft-ietf-http-v11-spec-rev-01?)
*/
public static final int SC_MULTI_STATUS = 207;
// --- 3xx Redirection ---
/** {@code 300 Mutliple Choices} (HTTP/1.1 - RFC 2616) */
public static final int SC_MULTIPLE_CHOICES = 300;
/** {@code 301 Moved Permanently} (HTTP/1.0 - RFC 1945) */
public static final int SC_MOVED_PERMANENTLY = 301;
/** {@code 302 Moved Temporarily} (Sometimes {@code Found}) (HTTP/1.0 - RFC 1945) */
public static final int SC_MOVED_TEMPORARILY = 302;
/** {@code 303 See Other} (HTTP/1.1 - RFC 2616) */
public static final int SC_SEE_OTHER = 303;
/** {@code 304 Not Modified} (HTTP/1.0 - RFC 1945) */
public static final int SC_NOT_MODIFIED = 304;
/** {@code 305 Use Proxy} (HTTP/1.1 - RFC 2616) */
public static final int SC_USE_PROXY = 305;
/** {@code 307 Temporary Redirect} (HTTP/1.1 - RFC 2616) */
public static final int SC_TEMPORARY_REDIRECT = 307;
// --- 4xx Client Error ---
/** {@code 400 Bad Request} (HTTP/1.1 - RFC 2616) */
public static final int SC_BAD_REQUEST = 400;
/** {@code 401 Unauthorized} (HTTP/1.0 - RFC 1945) */
public static final int SC_UNAUTHORIZED = 401;
/** {@code 402 Payment Required} (HTTP/1.1 - RFC 2616) */
public static final int SC_PAYMENT_REQUIRED = 402;
/** {@code 403 Forbidden} (HTTP/1.0 - RFC 1945) */
public static final int SC_FORBIDDEN = 403;
/** {@code 404 Not Found} (HTTP/1.0 - RFC 1945) */
public static final int SC_NOT_FOUND = 404;
/** {@code 405 Method Not Allowed} (HTTP/1.1 - RFC 2616) */
public static final int SC_METHOD_NOT_ALLOWED = 405;
/** {@code 406 Not Acceptable} (HTTP/1.1 - RFC 2616) */
public static final int SC_NOT_ACCEPTABLE = 406;
/** {@code 407 Proxy Authentication Required} (HTTP/1.1 - RFC 2616)*/
public static final int SC_PROXY_AUTHENTICATION_REQUIRED = 407;
/** {@code 408 Request Timeout} (HTTP/1.1 - RFC 2616) */
public static final int SC_REQUEST_TIMEOUT = 408;
/** {@code 409 Conflict} (HTTP/1.1 - RFC 2616) */
public static final int SC_CONFLICT = 409;
/** {@code 410 Gone} (HTTP/1.1 - RFC 2616) */
public static final int SC_GONE = 410;
/** {@code 411 Length Required} (HTTP/1.1 - RFC 2616) */
public static final int SC_LENGTH_REQUIRED = 411;
/** {@code 412 Precondition Failed} (HTTP/1.1 - RFC 2616) */
public static final int SC_PRECONDITION_FAILED = 412;
/** {@code 413 Request Entity Too Large} (HTTP/1.1 - RFC 2616) */
public static final int SC_REQUEST_TOO_LONG = 413;
/** {@code 414 Request-URI Too Long} (HTTP/1.1 - RFC 2616) */
public static final int SC_REQUEST_URI_TOO_LONG = 414;
/** {@code 415 Unsupported Media Type} (HTTP/1.1 - RFC 2616) */
public static final int SC_UNSUPPORTED_MEDIA_TYPE = 415;
/** {@code 416 Requested Range Not Satisfiable} (HTTP/1.1 - RFC 2616) */
public static final int SC_REQUESTED_RANGE_NOT_SATISFIABLE = 416;
/** {@code 417 Expectation Failed} (HTTP/1.1 - RFC 2616) */
public static final int SC_EXPECTATION_FAILED = 417;
/**
* Static constant for a 418 error.
* {@code 418 Unprocessable Entity} (WebDAV drafts?)
* or {@code 418 Reauthentication Required} (HTTP/1.1 drafts?)
*/
// not used
// public static final int SC_UNPROCESSABLE_ENTITY = 418;
/**
* Static constant for a 419 error.
* {@code 419 Insufficient Space on Resource}
* (WebDAV - draft-ietf-webdav-protocol-05?)
* or {@code 419 Proxy Reauthentication Required}
* (HTTP/1.1 drafts?)
*/
public static final int SC_INSUFFICIENT_SPACE_ON_RESOURCE = 419;
/**
* Static constant for a 420 error.
* {@code 420 Method Failure}
* (WebDAV - draft-ietf-webdav-protocol-05?)
*/
public static final int SC_METHOD_FAILURE = 420;
/** {@code 422 Unprocessable Entity} (WebDAV - RFC 2518) */
public static final int SC_UNPROCESSABLE_ENTITY = 422;
/** {@code 423 Locked} (WebDAV - RFC 2518) */
public static final int SC_LOCKED = 423;
/** {@code 424 Failed Dependency} (WebDAV - RFC 2518) */
public static final int SC_FAILED_DEPENDENCY = 424;
// --- 5xx Server Error ---
/** {@code 500 Server Error} (HTTP/1.0 - RFC 1945) */
public static final int SC_INTERNAL_SERVER_ERROR = 500;
/** {@code 501 Not Implemented} (HTTP/1.0 - RFC 1945) */
public static final int SC_NOT_IMPLEMENTED = 501;
/** {@code 502 Bad Gateway} (HTTP/1.0 - RFC 1945) */
public static final int SC_BAD_GATEWAY = 502;
/** {@code 503 Service Unavailable} (HTTP/1.0 - RFC 1945) */
public static final int SC_SERVICE_UNAVAILABLE = 503;
/** {@code 504 Gateway Timeout} (HTTP/1.1 - RFC 2616) */
public static final int SC_GATEWAY_TIMEOUT = 504;
/** {@code 505 HTTP Version Not Supported} (HTTP/1.1 - RFC 2616) */
public static final int SC_HTTP_VERSION_NOT_SUPPORTED = 505;
/** {@code 507 Insufficient Storage} (WebDAV - RFC 2518) */
public static final int SC_INSUFFICIENT_STORAGE = 507;
}
package com.cm.aps.util;
public class HttpResult {
private int code = 200;
private String msg;
private Object data;
public static com.cm.aps.util.HttpResult error() {
return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "未知异常，请联系管理员");
}
public static com.cm.aps.util.HttpResult error(String msg) {
return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg);
}
public static com.cm.aps.util.HttpResult error(int code, String msg) {
com.cm.aps.util.HttpResult r = new com.cm.aps.util.HttpResult();
r.setCode(code);
r.setMsg(msg);
return r;
}
public static com.cm.aps.util.HttpResult ok(String msg) {
com.cm.aps.util.HttpResult r = new com.cm.aps.util.HttpResult();
r.setMsg(msg);
return r;
}
public static com.cm.aps.util.HttpResult ok(Object data) {
com.cm.aps.util.HttpResult r = new com.cm.aps.util.HttpResult();
r.setData(data);
return r;
}
public static com.cm.aps.util.HttpResult ok() {
return new com.cm.aps.util.HttpResult();
}
public int getCode() {
return code;
}
public void setCode(int code) {
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public Object getData() {
return data;
}
public void setData(Object data) {
this.data = data;
}
}