Java-Web进阶系列（五）--maven构建struts2 web工程

maven构建struts2 web工程

创建maven工程，引入web.xml 上节已讲 戳这里

添加Struts依赖

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>oo544.xyz</groupId>
<artifactId>Strut2-Demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
<!-- struts2核心依赖包 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>2.5.14.1</version>
</dependency>

<!-- struts2注解 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-convention-plugin</artifactId>
<version>2.5.14.1</version>
</dependency>

<!-- struts2注解返回json格式数据依赖 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-json-plugin</artifactId>
<version>2.5.14.1</version>
</dependency>
</dependencies>
</project>

配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Strut2-Demo</display-name>

<filter>
<filter-name>Struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>

配置Struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<package name="base" extends="json-default,struts-default"></package>
</struts>

action代码,基于注解传值，跳转页面，返回json格式数据

package oo544.xyz.action;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;

import com.opensymphony.xwork2.ActionSupport;

@ParentPackage("base")
@Namespace("/A")
public class Aaction extends ActionSupport {

private static final long serialVersionUID = 1L;

@Action(value = "show", results = { @Result(name = "success", location = "/A.jsp") })
public String showPage() {
msg = StringUtils.isEmpty(msg) ? "haha" : msg;
return SUCCESS;
}

@Action(value = "json", results = { @Result(name = "getJson", type = "json", params = { "root", "jsonMap" }) })
public String getJson() {
jsonMap=new HashMap<>();
jsonMap.put("a", "hahah");
jsonMap.put("b", 123);
return "getJson";
}

private Map<String, Object> jsonMap;

public Map<String, Object> getJsonMap() {
return jsonMap;
}

public void setJsonMap(Map<String, Object> jsonMap) {
this.jsonMap = jsonMap;
}

private String msg;

public String getMsg() {
return msg;
}

public void setMsg(String msg) {
this.msg = msg;
}

}

启动项目；访问:http://127.0.0.1:8080/Strut2-Demo/A/json 返回json格式数据

http://127.0.0.1:8080/Strut2-Demo/A/show 跳转页面

源码下载: 戳这里下载源码