Resteasy usage example

RESTEasy introduction:

RESTEasy is an open-source project of JBoss. It provides various frameworks to help you build RESTful Web Services and RESTful Java applications. It is a complete implementation of JAX-RS specifications and passes JCP certification. As a JBOSS project, it can be well integrated with the JBOSS application server. However, it can also run in any Servlet container that runs JDK 5 or a later version. RESTEasy also provides a RESTEasy JAX-RS client call framework. It can be easily integrated with EJB, Seam, Guice, Spring and Spring MVC. Supports automatic GZIP decompression on the client and server.
Standard content
The JAX-RS provides some annotations that encapsulate a resource class, a POJOJava class, into Web resources.
Annotations include:
@ Path: indicates the relative Path of the Resource class or method.
@ GET, @ PUT, @ POST, @ DELETE. The annotation method is the type of the HTTP request used.
@ Produces: indicates the MIME media type returned.
@ Consumes: indicates the MIME media type that can accept the request.
@ PathParam, @ QueryParam, @ HeaderParam, @ CookieParam, @ MatrixParam, @ FormParam, respectively indicate that the parameters of the method come from different locations of the HTTP request. For example, @ PathParam comes from the URL path, @ QueryParam is the URL query parameter, @ HeaderParam is the header information of the HTTP request, and @ CookieParam is the Cookie of the HTTP request.

The following uses the iplat4j + Spring + ibatiS architecture platform of Baoxin software and a simple case column of the MiniUI front-end technology to explain the deletion operation.
1. Configure web. xml

<Servlet>
<Servlet-name> Resteasy </servlet-name>
<Servlet-class>
Org. jboss. resteasy. plugins. server. servlet. HttpServletDispatcher
</Servlet-class>
</Servlet>
<Servlet-mapping>
<Servlet-name> Resteasy </servlet-name>
<Url-pattern>/restservice/* </url-pattern>
</Servlet-mapping>

Second: write the Rest *. java class
/**
* Data subscription Rest
* @ Author Administrator
*
*/
@ SuppressWarnings (value = {"rawtypes "})
@ Path ("restservice ")
Public class RestSubscribe {
Logger logger = Logger. getLogger (RestUser. class );
@ POST
@ Path ("/deleteSubscribe2 ")
@ Produces ("application/json; charset = UTF-8 ")
/**
* Delete A data subscription
* Delete Based on consumerid and categoryId
* @ Param request
* @ Return
*/
Public String deleteSubscribe2 (@ Context HttpServletRequest request ){
EiInfo inInfo = new EiInfo ();
String data = request. getParameter ("data ");
String consumerId = request. getParameter ("consumerId ");
String operator = request. getParameter ("operator ");
InInfo. setCell ("I", 0, "consumerId", consumerId );
InInfo. setCell ("I", 0, "operator", operator );
InInfo. setCell ("I", 0, "categoryIds", data );
InInfo. set (EiConstant. serviceName, "FBSubscribe ");
InInfo. set (EiConstant. methodName, "deleteSubscribe2 ");
InInfo = SoaManager. callNewTx (inInfo );
Map <String, Object> map = new HashMap <String, Object> ();
Map. put ("result", "deleted successfully ");
Return JSONUtil. getInstance ().
Object2JSON (map,
JSONUtil. Feature. DEFAULT_DATE_PATTERN );
}
}

Third: service class Compilation
/**
* Data subscription service
* @ Author Administrator
*
*/
@ SuppressWarnings (value = {"rawtypes", "unchecked "})
Public class ServiceFBSubscribe extends ServiceBase {
Logger logger = Logger. getLogger (ServiceFBSubscribe. class );
SubscribeRepository subscribeRep = (SubscribeRepository) SpringApplicationContext. getBean ("subscribeRep ");

/**
* According to the consumerId and categoryId
* Delete A data subscription
* @ Param user
*/
Public EiInfo deleteSubscribe2 (EiInfo inInfo ){
Map <String, String> resultMap = new HashMap <String, String> ();
Try {
String categoryId = (String) inInfo. getCell ("I", 0, "categoryIds ");
String consumerId = (String) inInfo. getCell ("I", 0, "consumerId ");
String operator = (String) inInfo. getCell ("I", 0, "operator ");
String [] categoryIds = categoryId. split (",");
Subscribe subscribe = new Subscribe ();
For (String id: categoryIds ){
Subscribe. setCategoryId (id );
Subscribe. setConsumerId (consumerId );
Subscribe. setGuid (id );
SubscribeRep. delete2 (subscribe );
}
// Print the status returned by the server

ResultMap. put ("message ",
"Deleted ");
} Catch (Exception e ){
// TODO: handle exception
E. printStackTrace ();
InInfo. setStatus (EiConstant. STATUS_FAILURE );
InInfo. setMsg ("failed to delete data subscription! ");
ResultMap. put ("result", "false ");
ResultMap. put ("message", "failed to delete data subscription! ");
}
Return inInfo;
}
}

Fourth: Write the management warehouse class (* Repository. java)
1. interface class:
Public interface SubscribeRepository {
/**
* Delete data push feedback
* @ Param user
*/
Public void delete2 (Subscribe subscribe );
}
2. Implementation class:
/**
* Data subscription and maintenance warehousing
* @ Author: hushiguo
* @ Date: 2:59:15 pm
*/
@ SuppressWarnings ({"unchecked", "rawtypes", "unused "})
Public class SubscribeRepositoryImpl extends RepositoryBase implements SubscribeRepository {

Public void delete2 (Subscribe subscribe ){
// TODO Auto-generated method stub
If (subscribe. getConsumerId () = null | "". equals (subscribe. getConsumerId ()))
Throw new AppException ("Data subscription does not exist! ");
Try {
DaoUtil. delete (dao, "FBSubscribe. delete2", subscribe );
} Catch (Exception e ){
Throw new AppException ("failed to delete data subscription! ");
}
}
}
Fifth: spring registered Storage Class (applicationContext-fb-persist.xml)
<? Xml version = "1.0" encoding = "UTF-8"?>
<Beans xmlns = "http://www.springframework.org/schema/beans"
Xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance"
Xsi: schemaLocation = "http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
<Bean id = "subscribeRep" class = "com. baosight. buap. fb. persist. SubscribeRepositoryImpl">
<Property name = "dao" ref = "dao"/>
</Bean>
</Beans>
Sixth: resteasy. properties)
Com. baosight. buap. fb. rest. RestSubscribe
7. Compile * SQL. xml of ibatIS (FBSubscribe. xml)
<? Xml version = "1.0" encoding = "UTF-8"?>
<! DOCTYPE sqlMap PUBLIC "-// iBATIS.com//DTD SQL Map 2.0 //" http://www.ibatis.com/dtd/sql-map-2.dtd ">
<SqlMap namespace = "FBSubscribe">
<Delete id = "delete2">
Delete from T_UDP_SUBSCRIBE
WHERE CATEGORY_ID = # categoryId # andCONSUMER_ID = # consumerId #
</Delete>
</SqlMap>

Eighth: Jsp page writing (subscribeManage. jsp)
<Body>
<Div id = "dept_grid" class = "mini-datagrid" style = "width: 100%; height: 180px; "url =" <% = path %>/restservice/pQueryConsumers "idField =" appCode "onselectionchanged =" onSelectionChanged "selectOnLoad =" true ">
<Div property = "columns">
<Div field = "appName" width = "100" headerAlign = "center" allowSort = "true">
Customer name <input property = "editor" class = "mini-textbox" style = "width: 100%;"/>
</Div>
<Div field = "appDesc" width = "300" headerAlign = "center" allowSort = "true">
Customer description <input property = "editor" class = "mini-textbox" style = "width: 100%;"/>
</Div>
</Div>
</Div>
 
<Br/>
<Div id = "employee_grid" class = "mini-datagrid" multiSelect = "true"
Style = "width: 100%; height: 250px ;"
Url = "<% = path %>/restservice/queryByConsumerId2" idField = "guid">
<Div property = "columns">
<Div type = "checkcolumn"> </div>
<Div field = "categoryCode" width = "100" headerAlign = "center" allowSort = "true">
Data Category Code <input property = "editor" class = "mini-textbox" style = "width: 100%;"/>
</Div>
<Div field = "categoryName" width = "100" headerAlign = "center" allowSort = "true">
Data category name <input property = "editor" class = "mini-textbox" style = "width: 100%;"/>
</Div>
<Div field = "status" width = "100" headerAlign = "center" allowSort = "true">
Status <input property = "editor" class = "mini-textbox" style = "width: 100%;"/>
</Div>
</Div>
</Div>
<Br/>
<A class = "mini-button" style = "margin-left: 70%;" iconCls = "icon-edit" onclick = "updateType ('0 ') "> Start </a>
<A class = "mini-button" style = "margin-left: 2%;" iconCls = "icon-edit" onclick = "updateType ('1 ') "> stop </a>
<A class = "mini-button" style = "margin-left: 2%;" iconCls = "icon-remove" onclick = "delType"> Delete </a>

<Script type = "text/javascript">
Mini. parse ();
Var dept_grid = mini. get ("dept_grid ");
Var employee_grid = mini. get ("employee_grid ");
Dept_grid.load ();
// Linkage Query
Function onSelectionChanged (e ){
Var grid = e. sender;
Var record = grid. getSelected ();
If (record ){
Employee_grid.load ({"consumerId": record. guid });
}
}

// Delete data subscription
Function delType (){
Var row = dept_grid.getSelected ();
Var rows = employee_grid.getSelecteds ();
Var categoryId = [];
If (rows. length <1 ){
Alert ('select at least one data category! ');
Return;
} Else {
For (var I = 0; I <rows. length; I ++ ){
CategoryId. push (rows [I]. categoryCode );
}
CategoryId = categoryId. join (",");
}

If (rows. length> 0 ){
If (confirm ("are you sure you want to delete it? ")){
// Var json = {categoryId: categoryId };
// Json = mini. encode (json );
Var consumerId = row. appCode;
$. Ajax ({
Url: "<% = path %>/restservice/deleteSubscribe2 /",
Data: {data: categoryId, consumerId: consumerId, operator: operator },
Type: "post ",
Success: function (text ){
Alert (text. result );
Location. reload ();
},
Error: function (jqXHR, textStatus, errorThrown ){
Alert (jqXHR. responseText );
}
});
}

}
}
</Script>
</Bdoy>