1. 关系运算符 – 等于 (==, eq), 不等于 (!=, ne), 小于 (<, lt), 小于或等于 (<= , le), 大于 (>, gt), 和大于或等于 (>=, ge).
2. 逻辑运算符 – 且, 或, 非 (!).
3. 数学运算符 – 加法(+), 减法 (-), 乘法 (*), 除法(/), 除模(%) 和指数幂 (^).

spring el以注解的形式

package com.h3.core;

import org.springframework.beans.factory.annotation.value;
import org.springframework.stereotype.component;

@component("customerbean")
public class customer {

	//relational operators
	
	@value("#{1 == 1}") //true
	private boolean testequal;
	
	@value("#{1 != 1}") //false
	private boolean testnotequal;
	
	@value("#{1 < 1}") //false
	private boolean testlessthan;
	
	@value("#{1 <= 1}") //true
	private boolean testlessthanorequal;
	
	@value("#{1 > 1}") //false
	private boolean testgreaterthan;
	
	@value("#{1 >= 1}") //true
	private boolean testgreaterthanorequal;

	//logical operators , numberbean.no == 999
	
	@value("#{numberbean.no == 999 and numberbean.no < 900}") //false
	private boolean testand;
	
	@value("#{numberbean.no == 999 or numberbean.no < 900}") //true
	private boolean testor;
	
	@value("#{!(numberbean.no == 999)}") //false
	private boolean testnot;

	//mathematical operators
	
	@value("#{1 + 1}") //2.0
	private double testadd;
	
	@value("#{'1' + '@' + '1'}") //1@1
	private string testaddstring;
	
	@value("#{1 - 1}") //0.0
	private double testsubtraction;

	@value("#{1 * 1}") //1.0
	private double testmultiplication;
	
	@value("#{10 / 2}") //5.0
	private double testdivision;
	
	@value("#{10 % 10}") //0.0
	private double testmodulus ;
	
	@value("#{2 ^ 2}") //4.0
	private double testexponentialpower;

	@override
	public string tostring() {
		return "customer [testequal=" + testequal + ", testnotequal="
				+ testnotequal + ", testlessthan=" + testlessthan
				+ ", testlessthanorequal=" + testlessthanorequal
				+ ", testgreaterthan=" + testgreaterthan
				+ ", testgreaterthanorequal=" + testgreaterthanorequal
				+ ", testand=" + testand + ", testor=" + testor + ", testnot="
				+ testnot + ", testadd=" + testadd + ", testaddstring="
				+ testaddstring + ", testsubtraction=" + testsubtraction
				+ ", testmultiplication=" + testmultiplication
				+ ", testdivision=" + testdivision + ", testmodulus="
				+ testmodulus + ", testexponentialpower="
				+ testexponentialpower + "]";
	}
	
}

package com.h3.core;

import org.springframework.beans.factory.annotation.value;
import org.springframework.stereotype.component;

@component("numberbean")
public class number {

	@value("999")
	private int no;

	public int getno() {
		return no;
	}

	public void setno(int no) {
		this.no = no;
	}

}

执行

customer obj = (customer) context.getbean("customerbean");
system.out.println(obj);

输出结果

customer [testequal=true, testnotequal=false, testlessthan=false, testlessthanorequal=true, testgreaterthan=false, testgreaterthanorequal=true, testand=false, testor=true, testnot=false, testadd=2.0, testaddstring=1@1, testsubtraction=0.0, testmultiplication=1.0, testdivision=5.0, testmodulus=0.0, testexponentialpower=4.0]

spring el以xml形式

请参阅在xml文件定义bean的等效版本。在xml中，类似 < 小于符号不支持，应该使用下面所示文本形式，例如文本等值， ('<' = 'lt') 和 ('<=' = 'le').

<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-3.0.xsd">

	<bean id="customerbean" class="com.h3.core.customer">
	
	  <property name="testequal" value="#{1 == 1}" />
	  <property name="testnotequal" value="#{1 != 1}" />
	  <property name="testlessthan" value="#{1 lt 1}" />
	  <property name="testlessthanorequal" value="#{1 le 1}" />
	  <property name="testgreaterthan" value="#{1 > 1}" />
	  <property name="testgreaterthanorequal" value="#{1 >= 1}" />
		
	  <property name="testand" value="#{numberbean.no == 999 and numberbean.no lt 900}" />
	  <property name="testor" value="#{numberbean.no == 999 or numberbean.no lt 900}" />
	  <property name="testnot" value="#{!(numberbean.no == 999)}" />
		
	  <property name="testadd" value="#{1 + 1}" />
	  <property name="testaddstring" value="#{'1' + '@' + '1'}" />
	  <property name="testsubtraction" value="#{1 - 1}" />
	  <property name="testmultiplication" value="#{1 * 1}" />
	  <property name="testdivision" value="#{10 / 2}" />
	  <property name="testmodulus" value="#{10 % 10}" />
	  <property name="testexponentialpower" value="#{2 ^ 2}" />
		
	</bean>
	
	<bean id="numberbean" class="com.h3.core.number">
		<property name="no" value="999" />
	</bean>

</beans>