MySQL性能优化的21个最佳实践

1. xfire

+ spring

发布webservice

2. 利用 javascript  调用发布的webservice

使用xfire

+spring

发布webservice其实很简单,遵循一下几个步骤即可

1. 想要发布成文webservice的类,必须实现接口

2. 3个配置文件(后面详细说)

下面针对以上步骤详细说明

关于1中的要求,给个例子就明白了

Itest.java 代码

 

package
 test;  

  

import
 org.json.JSONException;  

  

public
 
interface
 IHello  

{  

    public
 String hello();  

    public
 String helloTo(String name);  

    public
 String getJsonData(String pageIndex,String pageSize);  

}  

HelloImpl.java 代码

 

package
 test;  

  

import
 java.util.*;  

  

import
 javax.servlet.http.HttpServletRequest;  

import
 javax.servlet.http.HttpSession;  

  

import
 org.codehaus.xfire

.transport.http.XFire

ServletController;  

import
 org.json.JSONException;  

import
 org.json.JSONStringer;  

  

public
 
class
 HelloImpl 
implements
 IHello  

{  

  

    public
 String hello()  

    {  

    return
 
"hello"
;  

    }  

  

    public
 String helloTo(String name)  

    {  

    return
 
" hello "
 + name + 
"!"
;  

    }  

  

    private
 
void
 example()  

    {  

    //使用session
  

     HttpServletRequest request = XFire

ServletController.getRequest();  

     HttpSession session = request.getSession();  

    }  

  

    public
 String getJsonData(String pageIndex,String pageSize)   

    {  

    String rtnValue = ""
;  

      

    rtnValue = ""
;  

    for
(
int
 i=
0
;i<Integer.parseInt(pageSize);i++)  

    {  

        rtnValue = rtnValue + "{'lastname': 'last"
 + pageIndex + 
"-"
 + i + 
"', 'firstname': 'first"
 + pageIndex + 
"-"
 + i + 
"' },"
;  

    }  

    rtnValue = rtnValue + "{'lastname': 'last', 'firstname': 'last' }"
;  

      

    rtnValue = "{'context':["
  + rtnValue + 
"],'pager':[{'totalRecord':'100','totalpage':'10','pageIndex':'"
 + pageIndex + 
"','pageSize':'10'}]}"
;  

      

    return
 rtnValue;  

    }  

}  

就这样写就可以了

关于三个配置文件

web.xml修改如下

xml 代码

 

<?
xml
 
version
=
"1.0"
 
encoding
=
"UTF-8"
?>
  

<
web-app
 
xmlns
=
"http://java.sun.com/xml/ns/j2ee"
 
xmlns:xsi
=
"http://www.w3.org/2001/XMLSchema-instance"
 
version
=
"2.4"
 
xsi:schemaLocation
=
"http://java.sun.com/xml/ns/j2ee   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
>
  

  <!-- 配置文件路径 开始 -->
  

    <
context-param
>
  

        <
param-name
>
log4jConfigLocation
</
param-name
>
  

        <
param-value
>
/WEB-INF/classes/log4j.properties
</
param-value
>
  

    </
context-param
>
  

    <
context-param
>
  

        <
param-name
>
contextConfigLocation
</
param-name
>
  

        <
param-value
>
  

            /WEB-INF/classes/applicationContext*.xml  

            classpath:org/codehaus/xfire

/spring

/xfire

.xml  

        </
param-value
>
  

    </
context-param
>
  

      

    <!-- 启动时加载Spring

ContextServlet -->
  

    <
listener
>
  

        <
listener-class
>
  

            org.spring

framework.web.context.ContextLoaderListener  

        </
listener-class
>
  

    </
listener
>
  

    <
listener
>
   

        <
listener-class
>
org.spring

framework.web.util.Log4jConfigListener
</
listener-class
>
   

    </
listener
>
   

  

    <
listener
>
  

        <
listener-class
>
  

            org.spring

framework.web.util.IntrospectorCleanupListener  

        </
listener-class
>
  

    </
listener
>
  

      

      <!-- XFire

 配置 -->
  

      <
servlet
>
   

        <
servlet-name
>
xfire

</
servlet-name
>
   

        <
servlet-class
>
org.spring

framework.web.servlet.DispatcherServlet
</
servlet-class
>
   

      </
servlet
>
   

        

      <
servlet-mapping
>
  

        <
servlet-name
>
xfire

</
servlet-name
>
  

        <
url-pattern
>
*.ws
</
url-pattern
>
  

      </
servlet-mapping
>
  

        

      <
welcome-file-list
>
  

        <
welcome-file
>
index.html
</
welcome-file
>
  

      </
welcome-file-list
>
  

</
web-app
>
  

这里注意   classpath:org/codehaus/xfire

/spring

/xfire

.xml  必须要写进去

xfire

-servlet.xml 新建这个文件,并且和web.xml放在同一个文件夹

注意: 名称和位置都不能变(也许可以改,我不知道)

xml 代码

<?
xml
 
version
=
"1.0"
 
encoding
=
"UTF-8"
?>
  

<!DOCTYPE beans PUBLIC "-//SPRING

//DTD BEAN//EN" "http://www.spring

framework.org/dtd/spring

-beans.dtd">
  

<
beans
>
   

    <
bean
 
class
=
"org.spring

framework.web.servlet.handler.SimpleUrlHandlerMapping"
>
   

        <
property
 
name
=
"urlMap"
>
  

            <
map
>
  

                <
entry
 
key
=
"/testService.ws"
>
  

                    <
ref
 
bean
=
"test"
/>
    

                </
entry
>
   

            </
map
>
   

        </
property
>
  

      </
bean
>
   

        

      <
bean
 
id
=
"test"
 
parent
=
"webService"
 
class
=
"org.codehaus.xfire

.spring

.remoting.XFire

Exporter"
>
   

        <
property
 
name
=
"serviceBean"
>
   

            <
ref
 
bean
=
"testBean"
/>
   

        </
property
>
   

        <
property
 
name
=
"serviceClass"
>
   

            <
value
>
test.IHello
</
value
>
   

        </
property
>
   

      </
bean
>
   

          

      <!-- webService base -->
  

      <
bean
 
id
=
"webService"
 
class
=
"org.codehaus.xfire

.spring

.remoting.XFire

Exporter"
 
abstract
=
"true"
>
  

        <
property
 
name
=
"serviceFactory"
>
  

            <
ref
 
bean
=
"xfire

.serviceFactory"
 
/>
  

        </
property
>
  

        <
property
 
name
=
"xfire

"
>
  

            <
ref
 
bean
=
"xfire

"
 
/>
  

        </
property
>
  

     </
bean
>
  

</
beans
>
  

spring

的配置文件 applicationContext-webService.xml
xml 代码

<?
xml
 
version
=
"1.0"
 
encoding
=
"UTF-8"
?>
  

<!DOCTYPE beans PUBLIC "-//SPRING

//DTD BEAN//EN" "http://www.spring

framework.org/dtd/spring

-beans.dtd">
    

<
beans
>
  

    <
bean
 
id
=
"testBean"
 
class
=
"test.HelloImpl"
>
</
bean
>
  

</
beans
>
  

查看wsdl    http://localhost:8080/mootools/ testService.ws

?wsdl

运行 进入 index.html 页面,点击 即可执行调用,正常显示表示发布成功,调用失败会返回error(运行前请修改index.html文件的源码,将url修改成真正的url)