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.yiibai.core;import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;@Component("customerBean")
public class Customer {//Relational operators@Value("#{1 == 1}") //trueprivate boolean testEqual;@Value("#{1 != 1}") //falseprivate boolean testNotEqual;@Value("#{1 < 1}") //falseprivate boolean testLessThan;@Value("#{1 <= 1}") //trueprivate boolean testLessThanOrEqual;@Value("#{1 > 1}") //falseprivate boolean testGreaterThan;@Value("#{1 >= 1}") //trueprivate boolean testGreaterThanOrEqual;//Logical operators , numberBean.no == 999@Value("#{numberBean.no == 999 and numberBean.no < 900}") //falseprivate boolean testAnd;@Value("#{numberBean.no == 999 or numberBean.no < 900}") //trueprivate boolean testOr;@Value("#{!(numberBean.no == 999)}") //falseprivate boolean testNot;//Mathematical operators@Value("#{1 + 1}") //2.0private double testAdd;@Value("#{'1' + '@' + '1'}") //1@1private String testAddString;@Value("#{1 - 1}") //0.0private double testSubtraction;@Value("#{1 * 1}") //1.0private double testMultiplication;@Value("#{10 / 2}") //5.0private double testDivision;@Value("#{10 % 10}") //0.0private double testModulus ;@Value("#{2 ^ 2}") //4.0private double testExponentialPower;@Overridepublic 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.yiibai.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/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsd"><bean id="customerBean" class="com.yiibai.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.yiibai.core.Number"><property name="no" value="999" /></bean></beans>